Neuron A is an inhibitory neuron that is activated when the person feels heat in the tip of their indexfinger. Neuron A sends signals to neuron B (the postsynaptic neuron).First consider how a stimulus impacts the firing rate of neuron A. For example, when the persontouches ice with their index finger vs. when the person touches a hot cup of coffee with their indexfinger? How would each of these impact the frequency of action potentials, the size of actionpotentials and the amount of neurotransmitter released.Second, consider Drug-D that causes all sodium channels in neurons to close immediately. Howwould taking Drug-D affect the firing rate of neuron A when the person touches a hot pan? In turn,how would this affect the firing rate of post-synaptic neuron B?Rubric:Impact of heat on AImpact of ice on A (Impact of drug X on AImpact of drug X on B 1

Inhibitory neurons are those neurons that produce neurotransmitters to reduce the ability of…

Answered: Impact of heat on A Impact of ice on Al…

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Impact of heat on A Impact of ice on Al Impact of drug X on A Impact of drug X on B

Human Physiology: From Cells to Systems (MindTap Course List)

9th Edition

ISBN:9781285866932

Author:Lauralee Sherwood

Publisher:Lauralee Sherwood

Chapter4: Principles Of Neural And Hormonal Communication

Section: Chapter Questions

Problem 4TAHL: Assume presynaptic excitatory neuron A terminates on a postsynaptic cell near the axon hillock and...

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Question

Neuron A is an inhibitory neuron that is activated when the person feels heat in the tip of their index
finger. Neuron A sends signals to neuron B (the postsynaptic neuron).
First consider how a stimulus impacts the firing rate of neuron A. For example, when the person
touches ice with their index finger vs. when the person touches a hot cup of coffee with their index
finger? How would each of these impact the frequency of action potentials, the size of action
potentials and the amount of neurotransmitter released.
Second, consider Drug-D that causes all sodium channels in neurons to close immediately. How
would taking Drug-D affect the firing rate of neuron A when the person touches a hot pan? In turn,
how would this affect the firing rate of post-synaptic neuron B?
Rubric:
Impact of heat on A
Impact of ice on A (
Impact of drug X on A
Impact of drug X on B 1

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