What is the main function of the nervous system?

• clean waste from the cells
• absorb nutrients for energy
• deliver messages to the brain

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NGSS.MS-LS1-8

Which part of the body is like a highway for sending messages?

• Blood
• Spinal Cord
• Atrium
• Ventricle

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NGSS.MS-LS1-8

What is the central nervous system (CNS) made of?

• brain and spinal cord
• brain and cranial nerves
• spinal cord and spinal nerves
• cranial nerves and spinal nerves

An involuntary, automatic response to a stimulus controlled by the spinal cord is a ____.

• stimulus

• reflex

• paralysis

• cerebellum

The space between neurons is called a ____.

• axon

• cerebellum

• synapse

• dendrite

Nerves that cause muscles to move are ____.

• axon nerves

• motor nerves

• sensory nerves

• feeling nerves

The ____ is made of all the nerves that spread out from the brain and spinal cord.

• peripheral nervous system

• average nervous system

• central nervous system

• linear nervous system

The __________ look like branches coming off the soma and are responsible for receiving information from other neurons.

• axons

• myelin

• dendrites

• axon terminals

The axon:

• releases neurotransmitters across the synapse.

• controls the metabolism and maintenance of the neuron.

• protects the neuron from potential chemical and physical interference.

• carries information towards the cells that communicate with that neuron.

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NGSS.MS-LS1-3

The human nervous system is composed of which two parts?

• central nervous system; somatic nervous system
• central nervous system; peripheral nervous system
• autonomic nervous system; somatic nervous system
• sympathetic nervous system; somatic nervous system