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the Nervous System. (Human brain (diencephalon: process sensory input,…
the Nervous System.
Human brain
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parietal lobe: size, shape, color, pain and speech
temporal lobe: hearing, speech, memory
frontal lobe: personality, emotions, intelligence
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action potential: nerve impulse is transmitter during action potential; only axons capable of action potentials
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K+ rushes out of a neuron after Na+ rush in which causes repolarization of the membrane back to resting potential
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summation: occurs when another stimulus of same type arrives before effect of first stimulus wears off
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spinal cord
the spinal cord consist of 31 segments, gives rise to a pair of spinal cord
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drugs
alcohol: impairs coordination reassuming balance ,speech , reaction and judgment
-vomiting -withdrawal-death
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opioids: warmth, cloudy thinking, itching loss consciousness
-nausea-addiction
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Major Nervous Functions
Integrative Function: analyzes sensory information, stores some aspects & makes decisions
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Cells of the nerves
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neurons: nerve cells, relay electrical impulses throughout the body
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