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

The Influx of Calcium into the Axon Terminal of a Chemical