A bundle of nerves that runs along the back of a vertebrate within the spinal column.

The part of the brain that controls balance, coordination, and unconscious muscle activities.

The part of the brain that controls conscious thoughts, senses, language, and memories.

A nerve cell.

The main control center in an animal body; part of the central nervous system.

Connected to the spinal cord, controls heartbeat, breathing, blood pressure, digestion.

Carry messages from body to brain from the brain to body.

Responds to information received from the outside environment and inside your body. For example, touching a hot stove is a stimulus.

Branch-like extensions of the neuron that receive chemical messages and carry them to the cell body.

Branch-like extensions of the neuron that receive chemical messages and carry them to the cell body.

Select the three main parts of the nervous system.

Which system is made up of the brain and spinal card?

Stimulus is perceived by a cell or organ called a

The body's response to such stimulus is demonstrated by a cell or organ known as

The nervous system uses electrical signals called _________ to carry messages.

It is responsible for actions that a person can control such as skeletal muscles and sensory neurons of the skin.

It carries impulses from the sense organs to the brain or spinal cord.

It carries messages away from the cell.

It carries impulses from the brain or spinal cord to the muscles.