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Discuss the concept of myelination and the purpose of the myelin sheath
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- Identify and label the following structures on the neuron model figure below: cell body, dendrites, neuron nucleus, neurolemma, axon hillock, nucleus of Schwann cell, Nissl bodies, myelin sheath, axon, node of Ranvier, axon terminals (of neurons synapsing with model neuron), endoneurium (refer to Figure 10.6). 3) 11Describe in detail the function for three type of potentials seen in neurons and describe in detail the three types of potentials seen in neurons?Describe how resting potential is form in a neuron. Key difference from in and out a neuron and how they are maintain and proteins involved.
- Because the long axons of neurons look like electrical wires, and both neurons and electrical wires conduct electricity, it is tempting to equate the two. Compare and contrast the functioning of axons and electrical wires in terms of their structure and the nature of the electrical signals they conduct. Please include references.Describe in detail the three types of potentials seen in neurons and functions of three types of potentials.Summarize the steps in generating an action potential as a flowchart. You can make your flowchart on paper and take a picture of it, or make it electronically. Be sure you’ve included: the location in the neuron and components of the neuron involved, the types of cellular transport and ions involved, how action potentials can be stimulated and inhibited. you can get the information from this: https://youtu.be/HYLyhXRp298
- Explain why myelinated axons can propagate (spread) action potentials faster than unmyelinated axons.Predict the effect of the poison ouabain (way-BAH-in), which blocks Na+/K+ pumps, on the neuronal action potential. (Hint: What would happen to the sodium and potassium ion gradients?)Describe how an action potential is generated in a neuron. Include channels that are open/closed during this process and be sure to include terms such as depolarization, threshold, hyperpolarization, and repolarization.