An individual finds themselves in a situation that requires a fight-or-flight response, leading to an accelerated heartrate. Which neurotransmitter is directly responsible for the increased cardiac muscle activity?
A) Norepinephrine
B) Acetylcholine
C) Dopamine
D) Glutamate

Question

Quizplus · Accepted Answer

Norepinephrine is released by the sympathetic nervous system during the fight-or-flight response and directly increases cardiac muscle activity, leading to an accelerated heartrate. Acetylcholine, dopamine, and glutamate are not directly responsible for this response.

An Individual Finds Themselves in a Situation That Requires a Fight-Or-Flight