Calcium Entry into the Presynaptic Terminal Is Greatest

question 8

Multiple Choice

Calcium entry into the presynaptic terminal is greatest:

• A)During the rising phase of the action potential.
• B)At the peak of the action potential.
• C)During the falling phase of the action potential.
• D)During the afterhyperpolarization that follows an action potential.
• E)When the action potential is in its resting phase.

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A sudden, involuntary urge to perform an action.

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An adult human male.