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The Nervous System

NAME:DUE DATE:
Across
Controls involuntary actions in body ie; heartbeat
Bundle of fiber that transmits impulses
Chemical by which each neuron communicates with others to process and send messages
An action that one does NOT think about
controls reflexes; carries signals from brain to the rest of the body
An action; the brain receives a message and sends another message along a path
Structural unit that sends and receives impulses through axons
An external change in environment that causes an impulse ex. loud clap of thunder
Down
located at the back of the skull; coordinates balance and movement
largest part of the brain; responsible for voluntary and educated actions
An electrical signal transmitted across bundles of nerves
Organs that respond to stimuli, such as eyes or ears
The system responsible for control and coordination
controls and coordinates functions throughout the body and responds to internal and external stimuli
An instant action that protects body from harm