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How do oligodendrocytes myelinate axons and how does this differ from myelination by Schwann cells?
In detail please. Thank you
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- Brain Anatomy Neuron. Label each part of the neuron in the spaces below. Label choices are given to you in the Word Bank. Please also provide a brief description of the function of each brain part: What does it do? 1. 2. 3. Word Bank: Axon Cell body (soma) Cell nucleus Dendrites 4. 5. 6. Terminal buttons Myelin sheathA blackboardlearn.utep.edu/ultra/courses/_132250_1/cl/outline Remaining Time: 40 minutes, 50 seconds. A Question Completion Status: 9. 10 11 QUESTION 9 Suppose that we have a virtual model of a nerve cell and we are trying to generate action potentiats that propagate down the entire length of the axon. We have set up this model neuron to have myelination down a portion of the axon, but have a large gap in the middle of the axon. In our simulations, we cannot seem to get the action potential from the node preceding the gap, into the gap, and then into the following node. What change could we make to our axon model to connect action potentials across this gap? The picture below shows the model neuron that we are building. If you are having trouble viewing this image, please access it at https://www.drop box.com/s/95ii2dyrgfwknog/Exam%204.%20Axon.png?dl=0 O Increase the density of ion channels in the gap. O Increase the thickness of the myelination. O Decrease the diameter of the axon. O…In temporal summation.. Select one: O A. IPSPS, but not EPSPS, are combined. O B. The postsynaptic cell's potential is a combination of two EPSPS arriving at a synapse in rapid succession. O C. Two synapses on different regions of a cell are stimulated at the same time. O D. A synapse is stimulated a second time after the effect of a first stimulus at the synapse has been terminated. O E. The size of an action potential depends on the size of the stimulus.
- Matching (may not use al choices; may use some choices more than once) Sección 79. Site of action potential propagation 80. Myelin is found here 81. Voltage gated calcium channels are found here 82. Site of temporal summation 83. Structure involved with signal reception 84. Location of EPSPS Post-synaptic membrane Site of salutatory Conduction 85. 86. 87. Site of spatial summation 88. Ligand (chemical) gated channels are found here 89. _Pre-synaptic membrane Salto de columna A. Dendrites B. Soma C. Axon Hillock D. Aхon E. Synaptic knob(f) Parts of a Neuron A Axon (initial B segment) G H C D | Synapse: The region where an axon terminal communicates with its postsynaptic target cell E F Output signal 02019 Person Education, Inc. Use the list below to identify D in the figure. postsynaptic neuron, integration, cell body, axon, action potential, presynaptic axon terminal, myelin sheath, synaptic vesicle, dendrites, input signal, Node of Ranvier, postsynaptic dendrite, nucleus, integration, axon hillock, voltage gated channel Synaptic cleft JGlial cells take care of neurons. Review the different types of glial cells by matching each description with the appropriate cell. You may use answers more than once. 1. Wrap around axons in the CNS: 2. Wrap around axons in the PNS: 3. Regulate exchange of substances with capillaries and control interstitial space: 4. Surround, regulate, and protect cell bodies of neurons in the PNS: 5. Tiny macrophages that engulf unwanted substances and keep the CNS "clean": 6. Provide a supportive network: 7. Help produce cerebrospinal fluid at choroid plexus:
- D 3 (f) Parts of a Neuron A Axon (initial G B segment) H Synapse: The region where an axon terminal communicates C D with its postsynaptic target cell E F Output signal 02019 Pearson Education, Inc. Use the list below to identify B in the figure. postsynaptic neuron, integration, cell body, axon, action potential, presynaptic axon terminal, myelin sheath, synaptic vesicle, dendrites, input signal, Node of Ranvier, postsynaptic dendrite, nucleus, integration, axon hillock, voltage gated channel A — Synaptic cleft JPlease, I do not understand this question. An explanation leading to the CORRECT answer would be helpful! Question: White matter in your spinal cord typically are neurons involved in transferring signals very rapidly throughout the central nervous system. The white color of white matter is the result of myelin sheaths around axons Which of the following is the most important major difference between signals moving through white matter vs gray matter?nswer After an action potential is generated in a neuron, it travels to the end of the axon. Explain how the absolute refractory period prevents the action potential from travelling back to the cell body, and why it does not prevent the action potential from moving down to the end of the axon. For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac). BIUS Paragraph 启 Q Arial 10pt A Ix ...
- Intro to Neuroscience Question Explain your reasoning and why you chose that answer.: Which of the following does NOT accurately describe medium spiny neurons (MSNs)? Group of answer choices They make a small number of synapses with many GPNs and a large number of synapses with a few GPNs They are GABAergic and therefore inhibitory. They are constitutively active to tonically inhibit the thalamus. They are activated by inputs from the cortex. All of the above are trueIntro to Neuroscience Question: Which of the following is an effect of cocaine and amphetamine? Group of answer choices Blocking dopamine reuptake Activating acetylcholine receptors on VTA neurons Directly activating dopamine receptors Inhibiting GABA release from interneurons All of the above Please explain why you chose that particular answer choice. You can do this by providing a full/complete explanation.(f) Parts of a Neuron A Axon (initial B segment) G H C D Synapse: The region where an axon terminal communicates with its postsynaptic target cell E F Output signal 02019 Pearson Education, Inc. Use the list below to identify D in the figure. postsynaptic neuron, integration, cell body, axon, action potential, presynaptic axon terminal, myelin sheath, synaptic vesicle, dendrites, input signal, Node of Ranvier, postsynaptic dendrite, nucleus, integration, axon hillock, voltage gated channel — Synaptic J cleft