Sandy looks at the final exam and becomes upset when she discovers that it covers two chapters she did not read.As a result,neurons in Sandy's ____ system are releasing the neurotransmitter ____ at the target organs.
A) parasympathetic; serotonin
B) sympathetic; serotonin
C) parasympathetic; norepinephrine
D) sympathetic; norepinephrine

Question

Quizplus · Accepted Answer

When Sandy becomes upset, it triggers the sympathetic nervous system, which is responsible for the fight or flight response. The neurotransmitter released by sympathetic neurons is norepinephrine, which prepares the body for action. Therefore, choice D is the best option. Choice A is incorrect because the parasympathetic system is responsible for calming the body down, and serotonin is not typically associated with the fight or flight response. Choice B is incorrect because while serotonin is a neurotransmitter that can affect mood, it is not typically associated with the sympathetic nervous system. Finally, choice C is incorrect because while norepinephrine is associated with the sympathetic nervous system, the parasympathetic nervous system is responsible for releasing it.

Sandy Looks at the Final Exam and Becomes Upset When