When an action potential reaches the end of an axon,it evokes the release of neurotransmitters by opening ____ channels in the axon terminal.
A)chloride
B)bicarbonate
C)calcium
D)oxygen

Question

When an action potential reaches the end of an axon,it evokes the release of neurotransmitters by opening ____ channels in the axon terminal.​
A)chloride
B)​bicarbonate
C)​calcium
D)oxygen

Quizplus · Accepted Answer

Calcium channels are responsible for the influx of calcium ions into the axon terminal, triggering the release of neurotransmitters into the synaptic cleft. Chloride and bicarbonate channels are not involved in this process. Oxygen is not a channel and therefore not involved in neurotransmitter release.

When an Action Potential Reaches the End of an Axon,it