Acetylcholine is the main neurotransmitter released by
A)preganglionic sympathetic neurons and cells of the adrenal medulla.
B)cells of the adrenal medulla and postganglionic parasympathetic neurons.
C)motor neurons and postganglionic sympathetic neurons.
D)preganglionic sympathetic neurons and postganglionic sympathetic neurons.
E)preganglionic sympathetic neurons and motor neurons.

Question

Quizplus · Accepted Answer

Acetylcholine is the primary neurotransmitter released by preganglionic sympathetic neurons and motor neurons. Preganglionic sympathetic neurons are part of the autonomic nervous system and release acetylcholine at their synapses with postganglionic neurons. Motor neurons, which innervate skeletal muscles, also release acetylcholine to stimulate muscle contraction.

Acetylcholine Is the Main Neurotransmitter Released by