Most of the Time Our Internal Organs Are in a State

Multiple Choice

Most of the time our internal organs are in a state of equilibrium. This is due to the interaction between these two systems.

A) peripheral nervous system and somatic nervous system
B) somatic nervous system and central nervous system
C) central nervous system and immune system
D) sympathetic nervous system and parasympathetic nervous system
E) endocrine system and somatic nervous system