What is the smallest part of the Nervous System ?

Neuron

What are the two divisions of the Nervous System ?

Peripheral and Central

What are the 2 types of nerves that make up the Peripheral Nervous System ?

Somatic and Autonomic

What're the 3 functions of the Nervous System ?

Receive information, direct body to respond, and help maintain homestasis by controlling all other activities of all other body ssystems.

The hot sun is an example of a .....

external stimulus

What is the nerve cell called ?

Neuron

The message a neuron carries is a ....

nerve impulse