The Neuron and Neural Firing

AP Psychology· difficulty 3/5

During an action potential, the inside of the neuron becomes

A
$More negative due to potassium influx$
B
$Neutral as ions stop moving$
C
$More negative due to chloride efflux$
D
$More positive due to sodium influx$
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Explanation

Sodium (Na⁺) channels open, Na⁺ rushes in, and the cell briefly becomes positive (depolarization).

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