Q
The absolute refractory period of an action potential is due to _______________?
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A
A. Insufficient neurotransmitter
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B
B. Depletion of intracellular na+
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C
C. Inactivation of na+ k+ atpase
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D
D. Voltage inactivation of the na+ channel
Correct Answer:
D. D. Voltage inactivation of the na+ channel