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LCE Science
Ch 6: The Nervous System Sec 2 : Divisions of the Nervous System
| Term | Definition |
|---|---|
| central nervous system | the division of the nervous system consisting of the brain and spinal cord |
| peripheral nervous system | the division of the nervous system consisting of all of the nerves located outside the central nervous system |
| brain | the part of the central nervous system that is located in the skull and controls most functions in the body |
| spinal cord | the thick column of nervous tissue that links the brain to most of the nerves in the peripheral nervous system |
| cerebrum | that part of the brain that interprets input from the senses, controls movement and carries out complex mental processes |
| cerebellum | that part of the brain that coordinates the actions of the muscles and helps maintains balance |
| brain stem | the part of the brain that lies between the cerebellum and spinal cord and controls the body's involuntary actions |
| somatic nervous system | the group of nerves in the peripheral nervous system that controls VOLUNTARY actions |
| autonomic nervous system | the group of nerves in the peripheral nervous system that controls INVOLUNTARY actions |
| reflex | an automatic response that occurs rapidly and without conscious control |
| concussion | a bruise like injury of the brain that occurs when the soft tissue of the brain collides against the skull |