The arrival of an action potential at the axon terminal results in the opening of
A) voltage-dependent magnesium channels.
B) ligand-gated magnesium channels.
C) voltage-dependent calcium channels.
D) ligand-gated calcium channels.

Question

Quizplus · Accepted Answer

The arrival of an action potential at the axon terminal results in the opening of voltage-dependent calcium channels. This allows calcium ions to flow into the terminal, triggering the release of neurotransmitters from synaptic vesicles.

The Arrival of an Action Potential at the Axon Terminal