Acetylcholine in the autonomic nervous system:
A) is found only in the parasympathetic division.
B) is not rapidly broken down by acetylcholinesterase (AChE) as it is in the somatic nervous system.
C) has effects for a very brief time, compared to the effects of other autonomic neurotransmitters.
D) always has excitatory effects.

Question

Quizplus · Accepted Answer

Acetylcholine (ACh) in the autonomic nervous system is rapidly broken down by acetylcholinesterase (AChE), which limits its action to a very brief time. This characteristic is in contrast to some other neurotransmitters in the autonomic nervous system that can have longer-lasting effects.

Acetylcholine in the Autonomic Nervous System