Multiple Choice
Why are action potentials usually conducted in one direction?
A) Ions can flow along the axon in only one direction.
B) Voltage-gated Na+ channels are inactivated during the refractory period.
C) The axon hillock has a higher membrane potential than the terminals of the axon.
D) Voltage-gated channels for both Na+ and K+ open in only one direction.
Correct Answer:

Verified
Correct Answer:
Verified
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