The Sympathetic Nervous System and the Parasympathetic Nervous System

Question

The sympathetic nervous system and the parasympathetic nervous system
A) generally exert opposite effects on visceral organs.
B) are sensory and motor, respectively.
C) are central and peripheral, respectively.
D) are autonomic and automatic, respectively.
E) are generally excitatory and inhibitory, respectively.

Accepted Answer

The sympathetic and parasympathetic nervous systems are part of the autonomic nervous system and generally exert opposite effects on visceral organs, such as increasing vs. decreasing heart rate or dilating vs. constricting pupils.