The primary neurotransmitter from the parasympathetic system that influences its autonomic targets is
A) acetylcholine.
B) adenosine.
C) norepinephrine.
D) adrenaline.
E) dopamine.

Question

Quizplus · Accepted Answer

The parasympathetic system primarily releases acetylcholine as its neurotransmitter, which slows down heart rate, increases digestion and salivation, and promotes rest and relaxation. Adenosine is not a primary neurotransmitter of the parasympathetic system, while norepinephrine and adrenaline are primarily released by the sympathetic system to prepare the body for fight or flight responses. Dopamine is involved in reward and motivation, but does not play a significant role in the autonomic nervous system.

The Primary Neurotransmitter from the Parasympathetic System That Influences Its