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| Deterieration of Mylin Sheath |
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bacterial in Schwann cells, nerve swells and dies. persistnant injury. bacteria can only reproduce in 93 degrees. not usually contageous of fatal. |
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| (afferent) sends information to the brain. |
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(efferent) messages sent out from the brain. moves muscles and glands |
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| relay neurons. connection neurons to neurons. |
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cells being moved by nervous system. (muscles and glands) |
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uses sensory, motor, and sometimes interneurons Relaxes opposing muscle. ex. Knee Jerk |
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| Peripheral Nervous System |
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| Everything other than brain and spinal cord. |
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| prevents direct contact between neurons and apillaries- only select things can get through. |
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Neurtransmitter. excitiory muscle contractions |
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Neurotransmitter. turns thoughts into actions. |
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Neurotransmitter. inhibitory pleasant feelings |
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Neurotransmitter inhibitory a result of low levels is schizophrenia |
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Neurotransmitter excitiory pain. *pain killers block this* |
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Neuromodulator altars other neurotransmitters. Natural Pain killers. Physical and emotional |
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| Medulla, Pons, Cerebellum |
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Definition
| breathing, circulatory, vomit, blinking, relay station |
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| almost entirly relay station |
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| non-voluntary, muscular coordination, learning capacity |
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| reticular activating system- controls sleep, arousal, prevents from paying attention to irrelivant information. |
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| main trackway for reticular activating system for relaying information. focuasing on important information. |
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| Homeostasis. thermostat. reflexive. hunger. sex. fight or flight. origin of base emotion. rage and pleasure. |
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2 hemispheres: Left: controls right side of the body logic, sequence, speech, math ability Right: controls left side of body music, patterns(face), emotional processing, spacial relationships conneted by corpus callusium |
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| Vision, interpreting vision |
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Hearing, association, smell Wernicks area- meaning, understanding laguage. |
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| somatosensory, reading, taste |
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motor cortex (movement) pre-frontal cortex- barrier between frontal and parital lobes- control of behavior, decision making. |
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