3.3 Parts of the Nervous System:

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11 Terms

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Two major subdivisions of nervous system:

Central nervous system/peripheral nervous system

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Central nervous system consists of:

brain/spinal cord

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Peripheral Nervous System:

Nerves/axons

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PNS subdivisions:

Somatic nervous system/autonomic nervous system

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Somatic nervous system:

activities/sensory relay to CNS

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Motor neurons:

Efferent/exit

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Sensory neurons:

Afferent/arrive

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Autonomic nervous system: controls…

controls internal organs/glands

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ANS Subdivision: sympathetic…

sympathetic nervous system/parasympathetic nervous system

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Sympathetic nervous system: preparing body…

preparing body for stressful activities

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Parasympathetic nervous system: return body...

return body to routine