An action potential involves the transfer of _____ and _____ ions across an axon's membrane.
A)calcium; potassium
B)sodium; potassium
C)sodium; calcium
D)calcium; chloride

Question

Quizplus · Accepted Answer

An action potential involves the transfer of sodium ions into the axon and potassium ions out of the axon, causing a temporary reversal of the membrane potential. Calcium ions do play a role in the release of neurotransmitters at the axon terminal, but they are not directly involved in the action potential itself. Chloride ions play a role in the inhibitory effects of neurotransmitters, but they are also not directly involved in the action potential.

An Action Potential Involves the Transfer of _____ and _____

An Action Potential Involves the Transfer of _ and _