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7th Grade Chapter 19

The Nervous System

QuestionAnswer
spinal cord injuries can result in paralysis
axon the part of a neuron that carries nerve impulses away from the cell body
concussion a bruise like injury of the brain
senses of smell and taste both detect chemicals
stimulus a change or signal in the environment that can make an organism react
reflex an automatic response of the body that occurs very rapidly and without conscious control
spinal cord the thick column of nerve tissue that links the brain to most of the nerves in the peripheral nervous system
the part of the brain that controls memory cerebrum
pain can alert the body to danger
alcohol is a depressant
the image produced by the lens is upside down
semicircular canals control the sense of balance
BAC the concentration of alcohol in the blood
pupil the name of the opening through which light enters the eye
vibrating material produces sound
nerve a bundle of nerve fibers
motor neuron sends an impulse to a muscle or gland
central nervous system is made up of the brain and spinal cord
brain stem regulates breathing
three regions that make up the brain include the cerebrum, cerebellum, and brain stem
synapse the space between an axon and the structure that receives the nerve impulse
neuron a cell that carries information through your nervous system
somatic nervous system controls voluntary actions
nearsightedness and farsightedness are caused by a defect in the shape of the eyeball
stimulants are drugs that speed up the activity of the central nervous system
Created by: Mrs. Gordon
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