Which of the following neurotransmitters affects neurons involved in the increased heart rate and the slowing of intestinal activity during stress?
A) acetylcholine
B) serotonin
C) dopamine
D) norepinephrine

Question

Quizplus · Accepted Answer

Norepinephrine is a neurotransmitter that affects neurons involved in the "fight or flight" response, such as increasing heart rate and suppressing digestion, during stress. Acetylcholine is involved in the parasympathetic nervous system, which slows down heart rate and increases digestion, so it is not the correct answer. Serotonin and dopamine have various roles in the brain and are not directly involved in the stress response.

Which of the Following Neurotransmitters Affects Neurons Involved in the Increased