Nervous System

What is the main function of the nervous system?

• to inhale oxygen and exhale carbon dioxide

• to break down food consumed by a person for nutrients

• to control the body's activities by relaying messages

• to control the body's movements

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NGSS.MS-LS1-8

What are the two divisions of the nervous system?

• Central and Lower nervous systems

• Central and Peripheral nervous systems

• Lower and Cerebral nervous systems

• Central and Muscular nervous systems

What are the three parts of the nervous system?

• brain, spinal cord, nerves

• brain, lungs, spinal cord

• heart, brain, nerves

• brain, nerves, neurons

Dendrites are part of a neuron that carries electrical signals _______ the cell body.

• to

• away

• in between

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NGSS.MS-LS1-2

Axons are part of a neuron that send electrical signals ________ the cell body

• to

• away from

• in between

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NGSS.MS-LS1-2

The space between an axon terminal of a neuron that is communicating with a dendrite of another neuron is called a ________________.

• Neuron

• Brain message

• Stimulus

• Synapse

This insulating material forms a layer, around the axon of a neuron.  It enables electrical signals to travel down the axon at higher speeds.

• neuron
• myelin sheath
• dendrite
• neurotransmitter

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NGSS.MS-LS1-2

Which is the following is represented by the letter A?

• Dendrite
• Cell Body 
• Nucleus
• Myelin Sheath

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NGSS.MS-LS1-2

Which is represented by the letter E?

• Axon

• Myelin sheath

• schwan cells

• terminal branches

The basic structural unit of the nervous system:

• nerve

• neuron

• brain

• spinal cord