Which of the following is the most direct result of depolarizing the presynaptic membrane of an axon terminal?
A) Voltage-gated calcium channels in the membrane open.
B) Synaptic vesicles fuse with the membrane.
C) Ligand-gated channels open, allowing neurotransmitters to enter the synaptic cleft.
D) An EPSP or IPSP is generated in the postsynaptic cell.

Question

Quizplus · Accepted Answer

Depolarization of the presynaptic membrane directly leads to the opening of voltage-gated calcium channels, which is a crucial step for the subsequent release of neurotransmitters.

Which of the Following Is the Most Direct Result of Depolarizing