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Central nervous system (Major parts of the brain (cerebellum (Vermisse: a…
Central nervous system
Action Potential
K+ rushes out of neuron after Na+ rush in, which is causes a re-polarization of the membrane back to resting potential.
If a strong enough, depolarization occurs, threshold potential is reached and impulse is sent down axon.
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Strong enough stimulation or nerve impulse causes Na+ gates to open, then Na+ rush into cells causing depolarization.
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Major parts of the brain
cerebrum
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Function: Control senses, thoughts, and movements
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brain stem
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Made of; Medulla oblongata, pons and midbrain
cerebellum
Vermisse: a narrow, worm shaped structure in between both sides of the cerebellum
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Function: Receives information from the sensory systems, the spinal cord, and other parts of the brain and then regulates motor movements
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functions of the lobes
frontal lobe
-Motor function, problem solving, memory language, and impulse control.
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Parietal
Processing sensory information regarding the location of parts of the body and interpreting visual information.
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Layers of the Meninges
Pia Mate
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Innermost, nearly transparent layer; has many nerves and blood vessels.
Dura Mate
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Dense, irregular, C.T. with many blood vessels and nerves.
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