Which of the following is or ARE functions of the nervous system? (There is more than one correct answer!)

• communication from the senses to the brain and spinal cord

• coordination of heartbeat and breathing when you are exercising

• control of breathing and heartbeat while you are sleeping

• control of motion and movement

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Structures (parts) of the nervous system include (check all that are correct)

• the brain

• the spinal cord

• nerves

• the muscles

An injury to the spinal cord in the lower back could cause you to lose movement and feeling in your:

• arms

• legs

• both

This diagram shows a

• heart muscle cell

• alveoli

• neuron (nerve cell)

• capillary

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Nerve cells send signals to other nerve cells.

• true

• false

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NGSS.MS-LS1-2

NGSS.MS-LS1-3

Sensory neurons send signals:

• toward your brain and spinal cord

• away from your brain and spinal cord

Motor neurons send information:

• from your brain and spinal cord toward your muscles

• from your body toward your spinal cord and brain, carrying information

This diagram shows that:

• your nervous system is made up of your stomach, lungs, and other organs

• nerves that come from different levels in your spine send messages to and from different organs

This diagram shows:

• a reflex arc

• a sensory neuron

• a motor neuron

Reflex arcs are a type of neural pathway that:

• does NOT involve the brain

• DOES involve the brain