Nervous System

A (a)   is a cell that moves messages in the form of fast-moving electrical energy.

The _ is made of the structures that control the actions and reactions of the body in response to stimuli from the environment.

• nervous system

• endocrine system

The _ is the body's central command organ.

• spinal cord

• heart

• brain

Your _ allows your brain to communicate with the rest of your body.

• brain

• spinal cord

• central nervous system

The three main areas of the brain are the _, the _, and the _.

• spinal cord

• cerebrum

• cerebellum

• brain stem

A _ is a collection of nerve cell extensions bundled together with blood vessels and connective tissue.

(a)  

A _ is a cell that moves messages in the form of fast-moving electrical energy.

(a)  

Tags

NGSS.MS-LS1-3

A _is made up of a large region called the cell body, a long extension called an axon, and short branches called dendrites.

• nerve

• glial cell

• neuron

Tags

NGSS.MS-LS1-3

A _ is a usually short, branched extension of the cell body.

• neuron

• nerve

• dendrite

Impulses are carried away from the cell body by extensions of the neuron, called an _.

• axial nerve

• axon

• alveoli

Tags

NGSS.MS-LS1-3