1.2 Overview of the Nervous System

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6 Terms

1
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Central

Transmit information from your nerves to and from brain

(brain and spinal cord)

EX: Nerves down the length of the back

2
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Peripheral

Messenger for the central and to the central

EX: Nerves throughout the body

3
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Autonomic

Controls involuntary muscle movements and organs

EX: Breathing, heartbeat, digestion

4
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Somatic

Controls voluntary muscles and skin

EX: Moving your arm; Holding your breath

5
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Sympathetic

“Fight or Flight” - Expends energy

Moves you up, all change

EX: Arousal, adrenaline

6
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Parasympathetic

Conserve energy, keeps us in homeostasis

Moves you down, returning you to normal

EX: Calm