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Ch. 12 Sec. 1 and 2
Mrs. Schoonover.....Nervous system
| Question | Answer |
|---|---|
| any change or signal in the environment that can cause an organism to react | stimulus |
| what your body does in reaction to a stimulus | response |
| nerve cells | neuron |
| the message that the neuron carries | nerve impulse |
| carry impulses tword the neurons cell body | dendrite |
| carries impulses away from the cell body | axon |
| a bundle of nerve fibers | nerve |
| picks up stimuli from the internal or external environment and turns it into a nerve impulse | sensory neuron |
| a neuron that carries nerve impulses from one nerve to another | interneuron |
| sends an impulse to a muscle or gland | motor neuron |
| the junction where one neuron can transfer an impulse to another structure | synapse |
| consists of the brain and spinal cord | central nervous system |
| includes all the nerves located outside the central nervous system | perpheral nervous system |
| controls most functions of the body | brain |
| the thick column of nervous tissue that links the brain to most of the nerves in the perpheral nervous systen | spinal chord |
| interprets input from the senses, controls movement, and carries out mental processes | cerebrum |
| cordinates the actions of your muscles and helps you keep your balance | cerebellum |
| controls bodys in voluntary actions | brain stem |
| voluntary actions | somatic nervous system |
| involuntary actions | autonomic nervous system |
| an automatic response | reflex |
| a bruise like injury on the brain | concussion |
Created by:
kaceykatie1234
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