NERVOUS
NEUROGLIA
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Choose the correct statement about action potential.
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A lot happens at paranode.
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When sodium ions enter the axon.
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When reaching the threshold value, usually -55 mV.
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As long as the transmission takes place, the charge may decrease.
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Explanation:
Detailed explanation-1: -The correct answer is c. An action potential, once started, cannot be stopped or negated.
Detailed explanation-2: -Threshold potential is the minimum potential difference that must be reached in order to fire an action potential. For most neurons in humans, this lies at-55 mV, so a signal to a resting cell must raise the membrane potential from-70 mV.
There is 1 question to complete.