Front

What is the main function of the nervous system?

Back

It sends and receives signals to control and coordinate body functions.

Front

What are the two parts of the nervous system?

Back

The central nervous system and the peripheral nervous system.

Front

What does the central nervous system include?

Back

It includes the brain and the spinal cord.

Front

What does the peripheral nervous system include?

Back

It includes all the nerves that connect the body to the central nervous system.

Front

What are neurons?

Back

Neurons are nerve cells that carry electrical signals through the body.

Front

What is the role of the myelin sheath?

Back

It insulates neurons and keeps signals going in the right direction.

Front

How do nerves send signals?

Back

Nerves use electrical impulses to send information through neurons.

Front

What protects the brain and spinal cord?

Back

The skull and spine protect them, along with cerebrospinal fluid.

Front

What does cerebrospinal fluid do?

Back

It cushions the brain and spinal cord, carries chemicals, and removes waste.

Front

What are sensory receptors?

Back

They are cells that detect stimuli like light, sound, touch, and send signals to the brain.