Which of the following statements about the sympathetic and parasympathetic nervous systems is true?
A) The sympathetic system controls external stimuli, while the parasympathetic system controls internal stimuli.
B) The sympathetic system typically stimulates organ activity, while the parasympathetic system typically inhibits it.
C) The sympathetic system is under voluntary control, while control of the parasympathetic is involuntary.
D) Both nervous systems stimulate the activities of many organs.
E) Both release the neurotransmitters serotonin and acetylcholine.

Question

Quizplus · Accepted Answer

The sympathetic nervous system generally stimulates organ activity (e.g., increasing heart rate), while the parasympathetic system typically inhibits it (e.g., slowing heart rate).

Which of the Following Statements About the Sympathetic and Parasympathetic