What Is the Endocrine System

Multiple Choice

What is the endocrine system?

A) the set of axons that carry messages back and forth between the brain and spinal cord
B) a collection of glia cells that support activity by the neurons of the brain although they convey no information by themselves
C) a set of glands that produce and release hormones
D) the part of the nervous system that becomes active when both the sympathetic and parasympathetic nervous systems are at rest