A subthreshold excitatory postsynaptic potential that reaches the axon hillock w

Question

A subthreshold excitatory postsynaptic potential that reaches the axon hillock will cause (choose one)

A. a weak action potential to be produced

B. a single action potential to be produced

C. no action potential to be produced

D. continuous propagation to occur on the axon

E. saltatory propagation to occur on the axon

A. a weak action potential to be produced

B. a single action potential to be produced

C. no action potential to be produced

D. continuous propagation to occur on the axon

E. saltatory propagation to occur on the axon

Explanation / Answer

ANSWER:

C.No action potential to be produced

When a nerve is stimulated by a stimulus with subthreshold strength, action potential does not occur.If the strength of the stimulus is above the subthreshold level,whatever may be the strength of the stimulus,the amplitude of action potential remains the same,This is called as all or none law.

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