Match each division of the autonomic nervous system with its function.
a.sympathetic division
b.parasympathetic division
-When an action potential reaches a synaptic knob and the membrane depolarizes,
A) ion channels open and calcium ions enter the cell.
B) ion channels open and calcium flows out of the cell.
C) neurotransmitter release is inhibited.
D) sodium channels open and the action potential continues.

Question

Quizplus · Accepted Answer

When an action potential reaches a synaptic knob, the depolarization of the membrane causes voltage-gated calcium channels to open, allowing calcium ions to enter the cell. This influx of calcium ions triggers the release of neurotransmitters into the synaptic cleft.

Match Each Division of the Autonomic Nervous System with Its