CMS Grade 7 Science (6-2) Divisions of the Nervous System (pp. 182-189)

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Autonomic Nervous System

The group of nerves in the peripheral nervous system that controls involuntary actions. (p. 187)

Somatic Nervous System

The group of nerves in the peripheral nervous system that controls voluntary actions. (p. 187)

Concussion

A bruiselike injury of the brain that occurs when teh soft tissue of the brain collides against the skull. (p. 189)

Reflex

An automatic response that occurs reapidly and without conscious control. (p. 187)

Peripheral Nervous System

The division of the nervous system consisting of all of the nerves located outside the central nervous system. (p. 182)

Central Nervous System

The division of the nervous system consisting of the brain and spinal cord. (p. 182)

Cerebellum

The part of the brain that coordinates the actions of the muscles and helps maintain balance. (p. 184)

Cerebrum

The part of the brain that interprets input from the senses, controls movement, and carries out complex mental processes. (p. 184)

Brain Stem

The part of the brain that lies between the cerebellum and spinal cord and controls the body's involuntary actions. (p. 184)

Brain

The part of the central nervous sytem that is located in the skull and controls most functions in the body. (p. 183)

Spinal Cord

The thick column of nervous tissue that links the brain to most of the nerves in the peripheral nervous system. (p. 183)


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