1. Complete the table of the parts of the nervous system and their functions.
Type your answer here.

Organ/Structure Role in Nervous System

Are the cells that make up the nervous
? system. They have three main parts—a
cell body, dendrites, and an axon.
These cells form networks and
communicate with each other via a
type of chain reaction.
central nervous system
Consists of all the nerves of the body.
The nerves take information and
? deliver messages to and from this
system
brain
Gets messages from the PNS to the
brain and directs messages from the
? brain to the intended destinations
along the proper nerve pathways.