The influx of calcium into the axon terminal of a chemical synapse is responsible for which of the following?
A) fusion of vesicles to the membrane and of exocytosis neurotransmitter
B) diffusion of the neurotransmitter across the membrane and into the cleft
C) termination of an action potential
D) movement of calcium through gap junctions
E) initiation of an action potential

Question

Quizplus · Accepted Answer

The influx of calcium into the axon terminal triggers the fusion of synaptic vesicles with the presynaptic membrane, leading to the release of neurotransmitters into the synaptic cleft through exocytosis.

The Influx of Calcium into the Axon Terminal of a Chemical