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Nervous System

TermDefinition
neuron nerve cell made up of dendrites, cell body, and axon
nerve impulse message that a neuron carries; either chemical or electrical signals
nerve a bundle of nerve fibers
synapse place where a neuron transfers an impulse between the axon of one neuron and the dendrites of another or other body structure
central nervous system (CNS) includes the brain and spinal cord and acts like a traffic cop that directs where impulses go
peripheral nervous system (PNS) network of nerves that branches out from the central nervous system and connects it to the rest of the body
reflex automatic response that occurs rapidly without conscious control
brain control center of the CNS; broken down into three main sections
brain stem controls body's involuntary actions like breathing and heartbeat
cerebellum coordinates muscle actions and helps with maintaining balance
cerebrum interprets input from the five senses, controls movement, and carries out complex mental processes like learning and remembering
spinal cord thick column of nervous tissue that links the brain to the PNS
Created by: muellershauna
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