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Definite energy in Quantum Mechanics According to Phillips' "Introduction to Quantum Mechanics", Chapter 4 "an eigenfunction of the Hamiltonian always describes a state of definite energy". But how can that be without violating the uncertainty principle? Energy and time are conjugate so neither can ... | Something special about energy eigenstates when it comes to time evolution? A particle is subject to an infinite square well potential with $$V(x)= \begin{cases} 0 & −a \lt x \lt a\\ \infty & \,\,\,\,\text{otherwise} \end{cases}$$ At a time $t=0$ its wavefunction is given by $$\psi(x, t=0)=\frac{1}{\sq... | Question regarding the validity of the big bounce I have several questions regarding the "big bounce" theory. It appears to be popular among LQG researchers. My questions are as as follows. 1) How one reconciles it with the fact that it is now experimentally established that the universe is expanding in an acceleratin... | eng_Latn | 11,100 |
How does the electron know to "release" the photon at the same angle at which it got absorbed? : In classical electrodynamics, light is considered as an electromagnetic wave, which is described by Maxwell's equations. Light waves incident on a material induce small oscillations of polarisation in the individual ato... | Explain reflection laws at the atomic level The "equal angles" law of refection on a flat mirror is a macroscopic phenomenon. To put it in anthropomorphic terms, how do individual photons know the orientation of the mirror so as to bounce off in the correct direction? | Can a quasiclassical electron wave packet in elliptic orbit be formed from bound hydrogen-like eigenstates? Position probability densities of eigenstates of hydrogen-like systems have axial symmetry, so that the wavefunction too much resembles the circular orbits in Bohr's model. I'd like to have a demonstration of cor... | eng_Latn | 11,101 |
Why does water fall sort of helically from a cup? I noticed today that if I took a glass of water and poured it out slowly (small tilt to the cup), it flowed rather smoothly, but when I increased the tilt the water flowed in a sort of helical manner, this could be observed in the given image in the case of a tap: ... | Wavy stream of liquid While pouring a liquid into a glass from a bottle, some streams have a wavy shape, like the one in the following photo: What causes the stream to be of such a shape? | Can a quasiclassical electron wave packet in elliptic orbit be formed from bound hydrogen-like eigenstates? Position probability densities of eigenstates of hydrogen-like systems have axial symmetry, so that the wavefunction too much resembles the circular orbits in Bohr's model. I'd like to have a demonstration of cor... | eng_Latn | 11,102 |
So I'm reading about bound systems right now in my quantum text. It is beginning to explain why energy must be quantized, and is doing so by introducing the reader to the one dimensional "quanton in a box". Essentially it shows this: For a region of 0 potential energy, with infinite potential energy everywhere else, a... | Given some potential $V$, we have the eigenvalue problem $$ -\frac{\hbar^2}{2m}\Delta \psi + V\psi = E\psi $$ with the boundary condition $$ \lim_{|x|\rightarrow \infty} \psi(x) = 0 $$ If we wish to seek solutions for $$ E < \lim_{|x|\rightarrow \infty}V(x), $$ I find textbooks like Sakurai and others as... | The new Top-Bar does not show reputation changes from Area 51. | eng_Latn | 11,103 |
Nuclear stability Why does increasing the number of neutrons in a nucleus make it more unstable? I know that adding more protons increases electrostatic repulsion, therefore the nucleus is more unstable, but as neutrons are neutral what effect does adding more have? | Adding many more neutrons to a nucleus decreases stability? If you take any large nucleus and add protons to it, the electrostatic repulsion between them will make the nucleus more unstable, because the electrostatic force between them is more repulsive at a greater distance than the strong force is attractive So how ... | Can virtual particles be thought of as off-shell Fourier components of a field? I just found blog post, which gives an interpretation of virtual particles I haven't seen before. Consider a 1D system of springs and masses, where the springs are slightly nonlinear. A "real particle" is a regular $\cos(kx-\omega t)$ wav... | eng_Latn | 11,104 |
Hamiltonian cycle and Euler Cycle. When $G = K_n, n \ge 3$ and $n$ is odd, then from the edges of the $G$ can be built edge-disjoint Hamiltonian cycles. Is it true? | Hamiltonian Cycle Problem At the moment I'm trying to prove the statement: $K_n$ is an edge disjoint union of Hamiltonian cycles when $n$ is odd. ($K_n$ is the complete graph with $n$ vertices) So far, I think I've come up with a proof. We know the total number of edges in $K_n$ is $n(n-1)/2$ (or $n \choose 2$) ... | Can a quasiclassical electron wave packet in elliptic orbit be formed from bound hydrogen-like eigenstates? Position probability densities of eigenstates of hydrogen-like systems have axial symmetry, so that the wavefunction too much resembles the circular orbits in Bohr's model. I'd like to have a demonstration of cor... | eng_Latn | 11,105 |
Unclear equation in my scriptum (perhaps cauchy-product) Hi the following equation in my scriptum seems unclear. I think it has something to do with cauchy-product but i dont know | Sum of a power series $n x^n$ I would like to know: How come that $$\sum_{n=1}^\infty n x^n=\frac{x}{(x-1)^2}$$ Why isn't it infinity? | Why can we treat quantum scattering problems as time-independent? From what I remember in my undergraduate quantum mechanics class, we treated scattering of non-relativistic particles from a static potential like this: Solve the time-independent Schrodinger equation to find the energy eigenstates. There will be a co... | eng_Latn | 11,106 |
Hessian and Ricci Curvature I just came across a term called the hessian and read that it represents the local curvature of a function at a point. So, if it represents local curvature, then is there any way the Hessian can be calculated in terms of the Ricci Curvature? | Relation bewteen Hessian Matrix and Curvature According to , It describes the local curvature of a function. AFAIK, for one-variable function $f(x)$, its local curvature is $$\kappa = \frac{|f''|}{(1 + f'^2)^{3/2}},$$ and its Hessian matrix is $$\mathcal{Hess}(f) = [f''],$$ right? And here is my problem, I think t... | Can a quasiclassical electron wave packet in elliptic orbit be formed from bound hydrogen-like eigenstates? Position probability densities of eigenstates of hydrogen-like systems have axial symmetry, so that the wavefunction too much resembles the circular orbits in Bohr's model. I'd like to have a demonstration of cor... | eng_Latn | 11,107 |
How can I orient particles on a round object? This is a question, that came up whilst working on a scientific representation of a cell membrane. In the following image you can see the particle system applied to a plane: What I now want to do is to apply that particle system to a cylinder or circular object, which will... | Scientific visualization - How to replicate instances around a sphere? I want to replicate a protein structure around an icosahedron. Basically a vesicle of protein structure is what we want: When I am instancing the protein structure using each vertex of the icosahedron it looks like: However, the tails are supposed... | Can virtual particles be thought of as off-shell Fourier components of a field? I just found blog post, which gives an interpretation of virtual particles I haven't seen before. Consider a 1D system of springs and masses, where the springs are slightly nonlinear. A "real particle" is a regular $\cos(kx-\omega t)$ wav... | eng_Latn | 11,108 |
In normalising the complete wavefunction of a free partcile; $V(x)=0$ we arrive at $\int_{-\infty}^{\infty}\Psi_{k} ^\dagger\Psi_{k}dx=|A|^{2}\int_{-\infty}^{\infty}dx=|A|^{2}\left(\infty\right)$ Which implies that this wave function is not normalisable. Mathematically, it is not normalisable but that's as far as ... | The wavefunction $\Psi(x,t)$ for a free particle is given by $$\Psi(x,t) = A e^{i(kx-\frac{\hbar k}{2m}t)}$$ This wavefunction is non-normalisable. Does this mean that free particles do not exist in nature? Why then do we use free particles $\psi(\vec{x}) = e^{ikz}$, for example, in scattering theory? | Show that every large integer has a large prime-power factor That is, if $P(n)$ designates the largest number $p^a$ which divides $n$, then $\lim_{n\to\infty}P(n)=\infty.$ | eng_Latn | 11,109 |
Stationary State of Quantum Mechanics | How will a particle with energy less than $V_{\rm min}$ behave? | How does quantization solve the ultraviolet catastrophe? | yue_Hant | 11,110 |
How to make my Avid Elixir 1 hydraulic brakes more firm? I have a Specialized Carve Comp 2013, and the front brake is very squishy. The brake system is Avid Elixir 1 hydraulic disc brakes. I wanted to inquire if I need to buy a specific kit to firm up the brake lever, or if there is a simpler, less expensive solution. ... | How do I bleed Avid Elixir brakes My bike has a set of Avid Elixir R hydraulic brakes. The front brake barely goes on when I pull the lever and the back brake feels pretty soft. I think I need to bleed them. How do I go about doing this? I think the brakes got like this because I pressed the brake level when the bike ... | Can a quasiclassical electron wave packet in elliptic orbit be formed from bound hydrogen-like eigenstates? Position probability densities of eigenstates of hydrogen-like systems have axial symmetry, so that the wavefunction too much resembles the circular orbits in Bohr's model. I'd like to have a demonstration of cor... | eng_Latn | 11,111 |
binational map keeps smoothness? Let $E$ be a smooth curve, that is, one dimensional projective variety with dimension one, and Jacobi matrix is non-singular at any point. And suppose that the map $φ$, which sends $E$ to $E'$, is birational. Birational means there are two rational maps on both direction which composite... | Birational map from elliptic curve keeps smoothness? Let $E$ be a elliptic curve that is , genus $1$ smooth curve with base point. And suppose that the map $φ$, which sends $E$ to $E'$, is birational. Birational means there are two rational maps on both direction which composites identity. Then, can we say that $E'$ is... | Can a quasiclassical electron wave packet in elliptic orbit be formed from bound hydrogen-like eigenstates? Position probability densities of eigenstates of hydrogen-like systems have axial symmetry, so that the wavefunction too much resembles the circular orbits in Bohr's model. I'd like to have a demonstration of cor... | eng_Latn | 11,112 |
Fractional quantum Hall effect Can someone explain the in layman's terms, I'm having some difficulty understanding it? | Quantum Hall effect for dummies In the past few days I've become increasingly intrigued by the QHE, mainly thanks to very interesting questions and answers that have appeared here. Unfortunately, I am as of yet very confused by all the (seemingly disparate) stuff I learned. First, here are some random points that I've... | How to find hydrogen wave-functions? I have found the hydrogen wave functions and would now like to calculate the function that describes the orbitals so that I can plot this function and see how they look. I don't know how I can do that and it is crazy how I cannot find anything on the subject on the internet as if t... | eng_Latn | 11,113 |
What does phase velocity physically represent, and why can it be superluminal? Phase velocity is defined as $v_p=\frac{\omega}{k}$ and is described in various textbooks as being the speed at which the phase of a wave propagates. If you have a wave train that is modulated by an envelope, then while the group velocity gi... | In superluminal phase velocities, what is it that is traveling faster than light? I understand that information cannot be transmitted at a velocity greater than speed of light. I think of this in terms of the radio broadcast: the station sends out carrier frequencies $\omega_c$ but the actual content is carried in the ... | Types of photon qubit encoding How many types of qubit encoding on photons exist nowadays? I know only two: Encoding on polarization: $$ \lvert \Psi \rangle = \alpha \lvert H \rangle + \beta \lvert V \rangle $$ $$ \lvert H \rangle = \int_{-\infty}^{\infty} d\mathbf{k}\ f(\mathbf{k}) e^{-iw_k t} \hat{a}^\dagger_{H}(\m... | eng_Latn | 11,114 |
2s orbital wavefunction has non-zero probability at $r=0$? | Hydrogen radial wave function infinity at $r=0$ | Why is the $S_{z} =0$ state forbidden for photons? | eng_Latn | 11,115 |
"Equidistant" spectra in quantum mechanics | Is the harmonic oscillator potential unique in having equally spaced discrete energy levels? | referring to Eqn. 1a) and 1b) in a sentence as eqn. (1) | eng_Latn | 11,116 |
How to get Bohr model from Schroedinger equation? | How is Bohr's model related to electron cloud models via the correspondence principle? | Trouble understanding the Bohr model of the atom | eng_Latn | 11,117 |
Absorption spectrum of Hydrogen | Lyman and Balmer series | Hydrogen radial wave function infinity at $r=0$ | eng_Latn | 11,118 |
What is the time independent Schrödinger equation? | What does the time independent schrodinges equations signify? | How do you explain the equation to calculate the period of a pendulum? | eng_Latn | 11,119 |
what is Bloch theorem | Bloch theorem. A theorem that specifies the form of the wave functions that characterize electron energy levels in a periodic crystal. Electrons that move in a constant potential, that is, a potential independent of the position r, have wave functions that are plane waves, having the form exp(i k · r).he theorem that ... | One may appeal to Bloch's theorem in order to make headway in obviating this latter problem. Instead of being required to consider an infinite number of electrons, it is only necessary to consider the number of electrons within the unit cell (or half of this number if the electrons are spin degenerate).ne may appeal to... | eng_Latn | 11,120 |
Schrodinger's equation | How can I vertically align the numerators of two fractions? | How can one derive Schrödinger equation? | eng_Latn | 11,121 |
How is energy quantized? | Is frequency quantized in the black body spectrum? | $G/Z$ cannot be isomorphic to quaternion group | eng_Latn | 11,122 |
Localized blockage of nerve impulses at the myoneural junction. | Neural plasticity of mushroom body-extrinsic neurons in the honeybee brain. | Exogenous growth factors do not affect the development of individually cultured murine embryos | eng_Latn | 11,123 |
Origin of the dorsal root reflex. | Modulation of spinal reflexes by pyramidal tract stimulation in an in vitro brainstem-spinal cord preparation from the hamster | Porin channels in intact cells of Escherichia coli are not affected by Donnan potentials across the outer membrane. | eng_Latn | 11,124 |
An enhancement to velocity selective discrimination of neural recordings: Extraction of neuronal firing rates | A microfabricated nerve-on-a-chip platform for rapid assessment of neural conduction in explanted peripheral nerve fibers | Failure to clear persistent vaccine-derived neurovirulent poliovirus infection in an immunodeficient man | eng_Latn | 11,125 |
To investigate the pathways of noxious information in the spinal cord in humans, we recorded cortical potentials following the stimulation of A-delta fibers using a YAG laser applied to two cutaneous points on the back at the C7 and Th10 level, 4cm to the right of the vertebral spinous process. A multiple source analys... | The ascending pain pathway consists of many complex neural structures, including specialized nociceptive receptors and peripheral nociceptive neurons in the dorsal root ganglion, spinal dorsal horn nociceptive and wide-dynamic range neurons, that play a role in the initial central neural processing for nociceptive info... | We prove that groups acting geometrically on delta-quasiconvex spaces contain no essential Baumslag-Solitar quotients as subgroups. This implies that they are translation discrete, meaning that the translation numbers of their nontorsion elements are bounded away from zero. | eng_Latn | 11,126 |
Patterns of morphological variation within myelin internodes of normal peripheral nerve: quantitative analysis by confocal microscopy. | Stereological characteristics of the equine accessory nerve. | Remodeling of chromatin loops does not account for specification of replication origins during Xenopus development | eng_Latn | 11,127 |
Printed in Great Britain PRIMARY AFFERENT DEPOLARIZATION OF MYELINATED FIBRES IN THE JOINT AND INTEROSSEOUS NERVES OF THE CAT | Monosynaptic excitation of dorsal spinocerebellar tract neurones from low threshold joint afferents. | Brain Injury Does Not Alter the Intrinsic Differentiation Potential of Adult Neuroblasts | yue_Hant | 11,128 |
In spiders, retrograde cobalt staining was used to clarify the distribution and detailed innervation of the three types of proprioceptors in the tibio-metatarsal leg joint: internal joint receptors, lyriform slit sense organs, and cuticular spines and hairs. The axons of all these receptors run in just two lateral, asc... | Scanning white light interferometry and micro-force measurements were applied to analyse stimulus transformation in strain sensors in the spider exoskeleton. Two compound or 'lyriform' organs consisting of arrays of closely neighbouring, roughly parallel sensory slits of different lengths were examined. Forces applied ... | We prove that groups acting geometrically on delta-quasiconvex spaces contain no essential Baumslag-Solitar quotients as subgroups. This implies that they are translation discrete, meaning that the translation numbers of their nontorsion elements are bounded away from zero. | eng_Latn | 11,129 |
1. In the abdomen and thorax of some groups of Crustacea (Stomatopoda, Decapoda Macrura, and Anomura) ganglion cells have been found with ramifications into special muscle-fibres. It is assumed that these are organs for response to stimuli resulting from muscular activity and therefore the name ‘muscle receptor organs’... | Histological and electrophysiological studies of identified long hair sensilla (LHS) have provided information on primary afferent fibre pathways in the ventral nerve cord of the Indian black scorpion, Heterometrus fulvipes. | We prove that groups acting geometrically on delta-quasiconvex spaces contain no essential Baumslag-Solitar quotients as subgroups. This implies that they are translation discrete, meaning that the translation numbers of their nontorsion elements are bounded away from zero. | eng_Latn | 11,130 |
Spinal nerves were transected at selected thoracic levels on the left side and the central cut end of the left major splanchnic nerve was exposed to horseradish peroxidase (HRP) in order to study the preganglionic sympathetic organization in the spinal cord of the cat. In three animals, a total of 4235 HRP labeled neur... | The segmental organization of the thoracic sympathetic trunk and all its ramifications was studied in 6 human fetuses (16-22 weeks) by means of the acetylcholinesterase in toto staining method. Each trunk was divided into 12 sympathetic segments. A segment is defined as that part of the sympathetic trunk which is conne... | It is proved, by using topological properties, that when a group automorphism of a locally compact totally disconnected group is ergodic under the Haar measure, the group is compact. The result is an answer for Halmos's question that has remained open for the totally disconnected case. | eng_Latn | 11,131 |
Tongue movements contribute to oral functions including swallowing, vocalizing, and breathing. Fine tongue movements are regulated through efferent and afferent connections between the cortex and tongue. It has been demonstrated that cortico-muscular coherence (CMC) is reflected at two frequency bands during isometric ... | The proprioceptive innervation of the tounge has been investigated in the Cynamolgus monkey by silver impregnation methods following unilateral section of lingual, hypoglossal, and cervical nerves. Muscle spindles were constantly present in the intrinsic and extrinsic muscles. They varied greatly in number, averaged ha... | We prove that groups acting geometrically on delta-quasiconvex spaces contain no essential Baumslag-Solitar quotients as subgroups. This implies that they are translation discrete, meaning that the translation numbers of their nontorsion elements are bounded away from zero. | eng_Latn | 11,132 |
There is a canonical A n -fibration from a ( 2 n + 1 ) -dimensional smooth affine quadric Y n to an ( n + 1 ) -dimensional punctured affine space X n . For each rank r at least n , we construct a nontrivial algebraic vector bundle of rank r on X n with trivial pullback to Y n . Moreover, we construct continuous familie... | An electrically operable stimulator and method for the control of pain or for other purposes through muscle and/or nerve stimulation by application of electrical pulses to the body of an animal, such as a human being. The stimulator generally comprises an internal power supply which may be rechargeable and which operat... | not available DOI: http://dx.doi.org/10.3329/pulse.v5i2.20263 Pulse Vol.5 July 2011 p.31-40 | eng_Latn | 11,133 |
Mechanoreceptive neurons with or without taste responsiveness were recorded in the cortical taste area (CTA) of rats every 50 or 100 µm along an electrode track made as perpendicular to the surface as possible. Three groups of mechanoreceptive neurons were recognized based on the adequate stimulus, i.e., low-threshold ... | The functional organization of the insular cortex was studied by recording neuronal responses to visceral sensory stimuli. Horseradish peroxidase (HRP) was then iontophoresed at the recording sites to identify afferents from the ventrobasal thalamus to specific visceroceptive sites in the insular cortex. The relationsh... | An electrically large resonant cavity (ELRC) operated at the TM100 dominant mode with unconstrained physical size is proposed in this letter. The rectangular cavity is filled partially by ε-negative metamaterial and μ-negative metamaterial. Modal equation for the dominant mode TM100 of the ELRC is deduced based on the ... | eng_Latn | 11,134 |
Analysis of the processes of summation of postsynaptic potentials on the membrane of motoneurons upon realization of the stretch reflex | The time courses of excitatory and inhibitory synaptic actions. | EXO0748−676 Rules out Soft Equations of State for Neutron Star Matter | eng_Latn | 11,135 |
Joint position and velocity derived from muscle spindle output: a neural network approach | Somatosensory cortical mechanisms of feature detection in tactile and kinesthetic discrimination | SNARE Function Is Not Involved in Early Endosome Docking | eng_Latn | 11,136 |
Synaptic plasticity and intrinsic changes in neuronal excitability are two mechanisms for Pavlovian conditioning. Pavlovian conditioning of Hermissenda produces synaptic facilitation of monosynaptic medial B-medial A IPSPs and intrinsic changes in excitability of type A and B cells in isolated and intact sensory neuron... | A Pavlovian-conditioning procedure may produce modifications in multiple behavioral responses. As an example, conditioning may result in the elicitation of a specific somatomotor conditioned response (CR) and, in addition, other motor and visceral CRs. In the mollusk Hermissenda conditioning produces two conditioned re... | Berzelius failed to make use of Faraday's electrochemical laws in his laborious determination of equivalent weights. | eng_Latn | 11,137 |
We describe methods of fine scale chemical and topographical patterning of silicon substrates and the selected attachment and growth of central nervous system cells in culture. We have used lithography and microcontact printing to pattern surfaces with self-assembled monolayers and proteins. Chemical patterns can be cr... | Advances in neuroscience and bioengineering have led to a nascent discipline known as neural engineering, whose activity ranges from neurally inspired computer algorithms to brain and peripheral nerve prostheses to imaging of functional brain activity. This paper describes progress in a neural engineering research area... | Blunt trauma abdomen rarely leads to gastrointestinal injury in children and isolated gastric rupture is even rarer presentation. We are reporting a case of isolated gastric rupture after fall from height in a three year old male child. | eng_Latn | 11,138 |
In what type of cell would you find an axon and dendrites? | The Neuron The Neuron Ukrainian translation by Valerie Bastiaan: Нейрон Neurons It is clear that most of what we think of as our mental life involves the activities of the nervous system, especially the brain. This nervous system is composed of billions of cells, the most essential being the nerve cells or neurons. T... | European bison | mammal | Britannica.com European bison THIS IS A DIRECTORY PAGE. Britannica does not currently have an article on this topic. Alternative Titles: Bison bonasus, wisent Wisent (Bison bonasus). A small group of European bison (Bison bonasus) grazing near the mountains. Encyclopædia Britannica, Inc. Europ... | eng_Latn | 11,139 |
What is part of the dorsal body cavity? | Is the dorsal cavity in the endocrine system? | Is the dorsal cavity in the endocrine system? | eng_Latn | 11,140 |
How does the schwann cell form the myelin sheath and the neurilemma? | Desribe how schwann cells form the myelin sheath and the neurilemma encasing the nerve processes? | Desribe how schwann cells form the myelin sheath and the neurilemma encasing the nerve processes? | eng_Latn | 11,141 |
Which is the largest nerve in the human body? | Sciatic Nerve - Anatomy Pictures and Information Home > Nervous System > Nerves of the Leg and Foot > Sciatic Nerve Sciatic Nerve The sciatic nerve is the largest and longest spinal nerve in the human body. Extending from the lumbar and sacral plexuses in the lower back, the sciatic nerve runs through the buttocks and ... | The Other National Christmas Tree The Other National Christmas Tree The official Christmas tree of the wild, wild west General Grant tree with a cover of snow and a Christmas wreath, Photo By: Alexandra Picavet By Christina Scannapiego Recreation.gov We Americans have the National Christmas Tree Lighting in Washington,... | eng_Latn | 11,142 |
In which part of the body is the 'Sural Nerve'? | Sural Nerve Entrapment Explained | | Chronic Body Pain Foot Pain Sural Nerve Entrapment Explained Before we can discuss what sural nerve entrapment is, you really should know what the sural nerve is and what it does. The sural nerve is also referred to as the short saphenous nerve. It is the sensory nerve located in th... | Carry On... Up The Khyber - Film - British Comedy Guide Carry On... Up The Khyber Carry On... Up The Khyber Like this film Carry On... Up The Khyber Like this film Trivia Carry On... Up The Khyber Sir Sidney Ruff-Diamond is in charge of the motley kilted crew of the Third Foot and Mouth regiment at a British outpost in... | eng_Latn | 11,143 |
What is the longest nerve in the human body? | Sciatic Nerve - Anatomy Pictures and Information Home > Nervous System > Nerves of the Leg and Foot > Sciatic Nerve Sciatic Nerve The sciatic nerve is the largest and longest spinal nerve in the human body. Extending from the lumbar and sacral plexuses in the lower back, the sciatic nerve runs through the buttocks and ... | Which 100-mile long waterway links the Mediterranean and the RedSea? View the step-by-step solution to: Which 100-mile long waterway links the Mediterranean and the RedSea? This question was answered on Jun 08, 2016. View the Answer Which 100-mile long waterway links the Mediterranean and the RedSea? ChristopherLane ... | eng_Latn | 11,144 |
Cranial nerves emerge directly from which organ in the human body? | SEER Training:The Peripheral Nervous System Updates The Peripheral Nervous System The peripheral nervous system consists of the nerves that branch out from the brain and spinal cord. These nerves form the communication network between the CNS and the body parts. The peripheral nervous system is further subdivided into ... | Dr. Finlay's Casebook: Amazon.co.uk: A.J. Cronin: 9781841588544: Books Dr. Finlay's Casebook Customers Who Bought This Item Also Bought Page 1 of 1 Start over Page 1 of 1 This shopping feature will continue to load items. In order to navigate out of this carousel please use your heading shortcut key to navigate to the ... | eng_Latn | 11,145 |
What particular muscles and nerves control the heart rate? | Which nerve speeds up heart rate during stress? | Why does the heart rate decrease after vagus nerve stimulation? | eng_Latn | 11,146 |
What provides the main receptive surface for neurons? | What does the cytoplasmic extension at the neuron cell body provide? | What happens to neurons that are not taken up by the receptors? | eng_Latn | 11,147 |
What is the path a nerve impulse travels within a single neuron? | What is the path an impulse travels? | What path does a nerve impulse travel within a single neuron? | eng_Latn | 11,148 |
What are nerve cells that carry messages throughout the body? | Nerve cells that carry messages throughout the whole human body? | Nerve cells that carry messages throughout the whole human body? | eng_Latn | 11,149 |
How the circulatory system works together with other system? | How does the digestive systme work with other systems? | Does the nervous system work with circulatory system? | eng_Latn | 11,150 |
What effect does parasympathetic nervous system have on the heart contractions? | How do the sympathetic and parasympathetic nervous system work togerther to regulat heart rate? | Why do pigs not have inguinal hernias? | eng_Latn | 11,151 |
What nerves are involved in bell's palsy? | What is bell-palsy? | Why do pigs not have inguinal hernias? | eng_Latn | 11,152 |
What other cells does the nerve cells depend on? | How are muscle and nerve cells different? | How do they depend on each other? | eng_Latn | 11,153 |
Synaptic vesicles in the axon reminal of a motor neuron contain what neurotransmitter? | Synaptic vesicles in the axon terminal of a motor neuron opens what type of ion channel? | Why do venus and mercury not have moons? | eng_Latn | 11,154 |
Does the neurons conduct? | The speed at which a neuron sends its message along the axon is faster if the? | Why is a conductor a conductor? | eng_Latn | 11,155 |
What neuron that move impulses from the brain? | True or falseA neuron transfers information in the form of an electrical impulse? | Why don't snow leopards migrate? | eng_Latn | 11,156 |
What are numerous endings of each motor neuron? | What are the axon of each motor neuron's numerous endings? | What is the motor end plate part of? | eng_Latn | 11,157 |
Does a peripheal nerve pass from the spinal cord into the limbs? | Does a peripheral nerve pass from the spinal sord into the limbs? | Does a peripheral nerve pass from the spinal sord into the limbs? | eng_Latn | 11,158 |
Which cranial nerve influenes equilibrium? | What carnial nerve is responsible for equilibrium? | Individual Americans have no impact on the economy? | eng_Latn | 11,159 |
Why is human body considered as the most complex and most well coordinated body system? | Why is nervous system considered the most complex of the system of the body? | Why is nervous system considered the most complex of the system of the body? | eng_Latn | 11,160 |
What is impulses of nerves? | What constitutes a nerve impulse? | What is ture about the regarding nerve impulses? | eng_Latn | 11,161 |
What is the mian organ of the nervous system? | What is the main organs od the nervous system? | What is the largest vien in the human body? | eng_Latn | 11,162 |
Which cell type is responsible for the transmission of electrochemical impulses? | Does glia cells trasmit electrochemical impulses? | Does glia cells trasmit electrochemical impulses? | eng_Latn | 11,163 |
What part of the neuron carries the message to another neuron? | What recives messages from other neurons and sends to the cell body? | Why won't neon argon kryton xeon and radon combine with other elements? | eng_Latn | 11,164 |
Nervous system and cardiovascular how do they work together? | Does the nervous system work with circulatory system? | Does the nervous system work with circulatory system? | eng_Latn | 11,165 |
How information passes through the hormonal system? | What path does the stimulus travel through the nervous system? | Why do venus and mercury not have moons? | eng_Latn | 11,166 |
Branches out to form nerver fibers? | What branches out from nerve fibers? | What branches out to from nerve fibers? | eng_Latn | 11,167 |
Part of nerve that receivesnervous impulse? | What is ture about the regarding nerve impulses? | Is water a nonrenubel rescorce? | eng_Latn | 11,168 |
What anatomical charachteristic determines whether the particular neuron is classified as unipolar bipolar or multipolar? | What anatomical characteristics detrrmines whethr a particular neuron is classified as unipolarbiopolar or mulitpolar? | What anatomical characteristics detrrmines whethr a particular neuron is classified as unipolarbiopolar or mulitpolar? | eng_Latn | 11,169 |
Is the vagus nerves carry nerve impulses that decrease the heart rate? | Why does the heart rate decrease after vagus nerve stimulation? | Why does the heart rate decrease after vagus nerve stimulation? | eng_Latn | 11,170 |
What fiber carries impulses away from the cell body of the neuron? | What cell transmitts impulses throughout the body? | Why do pigs not have inguinal hernias? | eng_Latn | 11,171 |
In vertebrates , acetylcholine is the neurotransmitter used at the neuromuscular junction , where signals are transmitted between neurons from the central nervous systems to muscle fibres . | In vertebrates , acetylcholine is the neurotransmitter used at the neuromuscular junction , where signals are transmitted between neurons from the central nervous system to muscle fibres . | The ` crossing ' or exchanging of books may take many different forms , including wild releasing books in public , direct swaps with other members of the website , or `` book rings '' in which books travel in a set order to people who want to read that book . | eng_Latn | 11,172 |
The ampullae of Lorenzini are the electroreceptor organs . | In them are which are nerve receptors called the ampullae of Lorenzini . | Some ornithopods and cerapods had thin cartilaginous plates along the outside of the ribs . In some cases , these plates mineralized and so were fossilized . | eng_Latn | 11,173 |
What are some of the cranial nerves? What functions do they have? | What are the cranial nerves? | What is the constitutional definition of a 'natural' born citizen? | eng_Latn | 11,174 |
Even a shark's electrical 'sixth sense' may be tuned to attack | Credit: CC0 Public Domain Imagine having superhuman hearing. You're at a noisy, cocktail party and yet your ears can detect normally inaudible sounds made by your friends' muscles as they lean in to dish the latest gossip. But, unlike normal hearing, each of these sounds causes your ears to react in the same way. There... | DETROIT Tesla Inc (TSLA.O) needs to complete fixing its Model S sedan emergency braking system to regain Consumer Reports' top safety rating, the magazine said on Friday, noting that a recent update by the luxury electric car maker was not enough.
The magazine, which provides an annual rating of vehicles sold in the Un... | eng_Latn | 11,175 |
How does the speed of a nerve impulse vary? | Why would the speed of a nerve impulse vary? | Why electricity is being transmitted in multiple of 11? | eng_Latn | 11,176 |
What is the most complex organ in an animal's body? | The brain is an organ that serves as the center of the nervous system in all vertebrate and most invertebrate animals. Only a few invertebrates such as sponges, jellyfish, adult sea squirts and starfish do not have a brain; diffuse or localised nerve nets are present instead. The brain is located in the head, usually c... | Early philosophers were divided as to whether the seat of the soul lies in the brain or heart. Aristotle favored the heart, and thought that the function of the brain was merely to cool the blood. Democritus, the inventor of the atomic theory of matter, argued for a three-part soul, with intellect in the head, emotion ... | eng_Latn | 11,177 |
What are giant axons? | As in arthropods, each muscle fiber (cell) is controlled by more than one neuron, and the speed and power of the fiber's contractions depends on the combined effects of all its neurons. Vertebrates have a different system, in which one neuron controls a group of muscle fibers. Most annelids' longitudinal nerve trunks i... | for any constant c. Matrix groups over these fields fall under this regime, as do adele rings and adelic algebraic groups, which are basic to number theory. Galois groups of infinite field extensions such as the absolute Galois group can also be equipped with a topology, the so-called Krull topology, which in turn is c... | eng_Latn | 11,178 |
As in other electrical systems, the paths of signals in the brain are called these | How exactly do neurons pass signals through your nervous system? Jan 19, 2012 ... Your brain contains 30 billion neurons, and each of them is a staggering achievement. ... network, or some kind of electrical system that passes nerve impulses around. ... These axon terminals are often located close to the dendrites of ... | Fun Easy English - Drive America - driving-united-states-america ... Learn the usage of road sign forms; Take the test. Usage of ... Equilateral Triangle (1 point ... Which sign form is used for interstate and U.S. route signs? A. B. C. | eng_Latn | 11,179 |
Reflexes only require one of what two structures in a body? | Physiologically, the function of the brain is to exert centralized control over the other organs of the body. The brain acts on the rest of the body both by generating patterns of muscle activity and by driving the secretion of chemicals called hormones. This centralized control allows rapid and coordinated responses t... | Part of the phonological study of a language therefore involves looking at data (phonetic transcriptions of the speech of native speakers) and trying to deduce what the underlying phonemes are and what the sound inventory of the language is. The presence or absence of minimal pairs, as mentioned above, is a frequently ... | eng_Latn | 11,180 |
Collections of nerve cell bodies in the brain are called?????? | nuclei refer to collections of cell bodies in the CNS and ganglia refer to collections of cell bodies in the PNS | hi I know this has nothing to do with yr question sorry to waste yr time...\nBut I just wanted to thank you,you replied to my question I chose you for best answer cause you really inspired me to not give a fuc# bout any1 so thanks if you would like to talk ,y email is : mecheva@hotmail.com\nTake Care thank you again!!\... | eng_Latn | 11,181 |
The axons of myelinated neurons are embedded in a protective covering of? | He's right it's really mylein, whoever made the test that some of your bio multiple choice questions came from did a crappy job :-P. The answer you need is Schwann cells because they make the mylein, which really should be the answer. Schwann cells only make mylein in the peripheral nervous system though. Oligodendr... | Are you looking at any protein in particular? Look up in situ hybrdization for proteins ( at least it will give you an idea where it is localised). I think that it would really depend on the system ad proteins that you want to study, so I am not sure how much else I can tell you, sorry. | eng_Latn | 11,182 |
distinguish and supply one example {i}critical vs sensitive developmental periods? | So someone does this for you and do what in the meantime - watch TV, paint your nails . . . \n\nOpen a book - it's quite easy. | I think you mean neurons... : )\n\nSensory neurons\nThese run from the various types of stimulus receptors, e.g., \ntouch \nodor \ntaste \nsound \nvision \nto the central nervous system (CNS), the brain and spinal cord. \n\nhttp://users.rcn.com/jkimball.ma.ultranet/BiologyPages/N/Neurons.html\n\n\ncheck out the above p... | eng_Latn | 11,183 |
What are receptor cells? | They receive and react to the reception of stimuli. For example, rods and cone cells of the retina receive light, taste and smell receptors. The skin contains several types of receptor cells.\nThere are various types of receptor cells within the body too; proprioreceptors of the musculo-skeletal system, chemoreceptors ... | i dnot know i want to know to so im with u person.(girl or boy) | eng_Latn | 11,184 |
Describe the olfactory organ and its function.? | modified epithelial collecters connected to olfactory nerves [for smell] the olfactory is a cranial nerve. | dont know but check out sites like google and yahoo. am sure you'll find something useful. as i am answerin your question give my answer, the best answer. you too will get your 5 pts back | eng_Latn | 11,185 |
What is the function of the dorsal root gangliion? | The dorsal root ganglion relays somatasesensory information from that afferent sensory nerve fibers to the spinal cord and ultimately sensory cortex of the brain in the parietal cortex.\n\nFor example, if you burn your little finger, the pain receptors will stimulate the sensory portion of the ulnar nerve. The ulnar ne... | there is a problem in maths that is named "graphes" and the funtion of these routers is to use this solution, u can find it in math books!!! | eng_Latn | 11,186 |
Does anybody know about the Nervous system? | Tasting, smelling, seeing, hearing, thinking, dreaming, breathing, heart beating, moving, running, sleeping, laughing, singing, remembering, feeling pain or pleasure, painting, writing...you couldn't do any of these things without your central nervous system! \n\nWhat is the nervous system? \nMade up of your brain, you... | Confederation - Days of George Washington\nFederal System - Days of George Bush and all Republicans since Democrats are the DEVIL which is why it begins with D. | eng_Latn | 11,187 |
what are sensory neros? | I think you mean neurons... : )\n\nSensory neurons\nThese run from the various types of stimulus receptors, e.g., \ntouch \nodor \ntaste \nsound \nvision \nto the central nervous system (CNS), the brain and spinal cord. \n\nhttp://users.rcn.com/jkimball.ma.ultranet/BiologyPages/N/Neurons.html\n\n\ncheck out the above p... | Not born, but people with "Erythema ab igne" have a greatly reduced ability to sweat due to damage to sweat glands from chronic heat exposure.\n\nStump your instructor.\nHeat induced skin lesions and skin cancer. Heat thins the skin. Common in foundry workers. | eng_Latn | 11,188 |
what is the function of a dendrite? | In biology, a dendrite is a slender, typically branched projection of a nerve cell, or neuron, which conducts the electrical stimulation received from other cells to and from the cell body, or soma, of the neuron from which it projects. These stimulations arrive through synapses, which are located at various points thr... | Try this one on for size: be a Dentist and do what dentists do... | eng_Latn | 11,189 |
Can the neurotransmitters be detected in the brain? | Is there a reliable way to measure neurotransmitters in the brain? | What is responsible for chemicals that have affinity for a particular neurotransmitter receptor being active in different parts of the brain? | eng_Latn | 11,190 |
How are the types of nerve cell structured? | How are the different types of nerve cells formed? | What are cranial nerves? | eng_Latn | 11,191 |
are axons nerves | The grey matter of the spinal cord integrates reflexes to stimuli. Nerves. Nerves are bundles of axons in the peripheral nervous system (PNS) that act as information highways to carry signals between the brain and spinal cord and the rest of the body. Each axon is wrapped in a connective tissue sheath called the endone... | An axon or nerve fiber is a long, slender projection of a nerve cell, or neuron, that conducts electrical impulses away from the neuron's cell body or soma. Axons are in effect the primary transmission lines of the nervous system, and as bundles they help make up nerves. | eng_Latn | 11,192 |
what is the medical term for nerves | Nerves, Neuroglia, and Ganglia. A nerve is a bundle of fibres (axons and/or dendrites) outside the CNS. Neuroglia are cells of the nervous system that help protect and support it. Ganglia are groups of nerve cell bodies lying outside the CNS. | Neuralgia is the medical term meaning nerve pain. Neur/o means nerve, algia means pain. noe. Neuralgia is the medical term meaning nerve pain. Neur/o means nerve, algia means pain. | eng_Latn | 11,193 |
most blood vessels are innervated by the sympathetic division alone | Organs Without Dual Innervation. Although most organs are innervated by both sympathetic and parasympathetic nerves, some-including the adrenal medulla, arrector pili muscles, sweat glands, and most blood vessels-receive only sympathetic innervation. | All postganglionic parasympathetic fibers are cholinergic. B. Most postganglionic sympathetic fibers are adrenergic (use norepinephrine as a neurotransmitter). C. Sympathetic fibers that innervate sweat glands and those that innervate blood vessels in skeletal muscles are cholinergic.III. Adrenergic effects include sti... | eng_Latn | 11,194 |
which is true of a neuron with a resting potential | Stages of Neural Impulses. Resting potential is the name for the electrical state when a neuron is not actively being signaled. A neuron at resting potential has a membrane with established amounts of sodium (Na+) and potassium (K+) ions on either side, leaving the inside of the neuron negatively charged relative to th... | In most neurons the resting potential has a negative value of ~-70mV, which by convention means that there is excess negative charge inside compared to outside. | eng_Latn | 11,195 |
what connective tissue layer surrounds an axon | Each nerve is a cordlike structure containing bundles of axons. Within a nerve, each axon is surrounded by a layer of connective tissue called the endoneurium. The axons are bundled together into groups called fascicles, and each fascicle is wrapped in a layer of connective tissue called the perineurium. | Most axons are surrounded by an insulating layer of lipid combined with protein called myelin. The myelin sheath functions to electrically insulate the axon. This greatly increases the speed of conduction of nerve impulses. The amount of myelination increases from birth through adulthood. | eng_Latn | 11,196 |
what does nerve ending mean | ⢠NERVE ENDING (noun). The noun NERVE ENDING has 1 sense: 1. the terminal structure of an axon that does not end at a synapse. Familiarity information: NERVE ENDING used as a noun is very rare. | False. The brain, the pia mater, and the arachnoid do not have sensory nerve endings. The dura mater has sensory nerve endings especially near the dural venous sinuses and the middle meningeal artery. | eng_Latn | 11,197 |
A mass of nerve cells are called what | Millions of messengers. Your nervous system contains millions of nerve cells, called neurons. Neurons are highly specialised to transmit messages from one part of your body to another. All neurons have a cell body and one or more fibres.These fibres vary in length from microscopic to over 1 metre.There are two differen... | Parts of the Brain. The brain's nerve cells are known as neurons, which make up the organ's so-called gray matter.. The neurons transmit and gather electrochemical signals that are communicated via a network of millions of nerve fibers called dendrites and axons. These are the brain's white matter.. | eng_Latn | 11,198 |
neuron cluster definition | 1 A cluster of neurons is called either a nucleus if found in the central nervous system (brain and spinal cord) or a ganglion if found in the peripheral nervous system. Ganglia are the intermediate structures between the central and the peripheral nervous systems. | A neuron (/ËnjÊÉrÉn/ NYEWR-on or /ËnÊÉrÉn/ NEWR-on, also known as a neurone or nerve cell) is an electrically excitable cell that processes and transmits information through electrical and chemical signals. | eng_Latn | 11,199 |
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