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Houston Ch. 18 Sci
Ch. 18 Review for Science Test
| Question | Answer |
|---|---|
| cerebrum | controls thinking and interprets information from sense organs |
| cerebellum | controls body movements and helps maintain balance |
| medulla | controls digestion and activity of glands and involuntary muscles |
| brain stem/medulla | made up of nerves from other two brain parts and connects the brain to the spinal cord |
| endocrine glands | have no ducts |
| testosterone | a male reproductive hormone |
| insulin | hormone that controls sugar in the blood |
| job of brain | to receive, interpret, and react to messages in the body |
| cerebrum | largest part of the brain |
| reflexes | controlled by the brain |
| reflex arc | body's reaction that does not involve the brain (path=receptor to spinal cord to muscle) |
| synapse | the gap between one cell and the dentrite of another |
| path substances from endocrine glands travel | from glands into blood vessels |
| sense organ | a special organ that receives and processes stimuli from the environment |
| Names of sense organs: | skin, eyes, mouth/nose, ears, nose |
| skin | detects temperature |
| optic nerve | carry nerve signals from the retina in the eye to the brain |
| outer ear | gathers sounds |
| cochlea | changes vibrations into nerve signals in the ear |
| depressant | drug that slows down the central nervous system |
| stimulant | drug that speeds up the central nervous system |
| alcoholic | dependent on alcohol |
| addiction | an uncontrollable dependence on drugs |
Created by:
Ms.T
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