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| a biologist who studies the nervous stystem |
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| a physician who specializes in disorders of the nervous system |
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| the principal organ of the nervous system; protected by the cranium |
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| a thick bundle of nerve fibers located within the spinal cavity |
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| transmit nerve signals to and from the rest of the body |
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| a triple layer of protective tissues that cover the spinal cord and brain |
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| serves to cushion the brain when you bump your head |
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| support and insulate nerve tissue |
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| a short, branched extension of the cell that receives nerve impulses from other neurons and conducts them toward the cell body |
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| a long extension which relays nerve impulses from the cell body to other neurons |
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| fouynd within the brain and spinal cord that consists largely of the cell bodies and neurons; is gray because of the cell bodies lack of myelin |
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| composed of axon and glial cells that are white because of their myelin content |
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| neurons that transmit information to the centrla nervous system fro the senses of sight, hearing, taste ,touch, and smell, as well as those that transmit pain signals |
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| neurons that relay signals from the central nervous system to the other parts of the body |
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| neurons responsible for the processing of information by the brain |
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| these tightly sealed capillary walls protect the central nervous system from being permanately damaged every time you get sick |
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| a disease caused when invading organisms enter the nerve tissue and infect the meninges |
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| a state of prolonged unconsciousness |
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| a serious disease that attacks the spinal cord |
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| the part of the perpiheral nervous system that controls the heart and other internal organs |
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| generally responds to your body's needs during increased activity and in emergency situations by causing heartbeat and breathing rates to increase |
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| acts as a balance to counteract the actions of the sympathetic division |
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| produce layers of myelin sheathing that acts much like the instillation of an electrical wire |
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| a disease of the brain and spinal cord |
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| disease that affects the patient's control of posture and movement |
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| upper part of the brain; coordinates thought, memory, and learned behaviors; the largest part of the brain |
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| lower part of the brain; coordinates voluntary muscle activity |
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| the part that connects to the spinal cord; controls the involuntary muscles and activities of the autonomic nervous system |
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| the outer layer of the cerebrum; consists mainly of cell bodies; is deeply grooved making it possible for a maximum amount of gray matter to fit in a limited space |
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| the rear portion of the frontal lobes |
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| the lowest part of the brain stem |
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| links the cerebrum with the cerebellum |
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| the control unit of your body's automatic systems; responsible for the physical effects of emotions |
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| partial or complete hearing loss |
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| a scientific measure of loudness |
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| one of the most commonly abused drugs in the world |
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| the most common serious injury of the nervous system and a leading cause of death around the world |
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| a period of paralysis of the central nervous system accompanied by a short period of unconsciousness |
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| commonly known as lockjaw because severe muscle spasms of the jaw muscles make it hard to open the mouth |
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| one of the most common mental disorders of the elderly is a disturbance of the brain caused by physical illness elsewhere in the body |
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| symptoms similar to dementia but more severe and may occur much earlier in life |
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| sight, hearing, smell, taste, and balance |
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| a bare dendrite that reacts to a certain typ of strong stimulus |
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| the sensory receptors responsible for sensation of touch and pressure |
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| respond to temperature changes |
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| react to temperatures above normal body temperature |
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| chemoreceptors on the back, sides, and of you |
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| chemoreceptors on the back, sides, and front of the tongue that detect dissolved chemicals in the mouth |
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| connect nose sensory receptors to the brain |
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| three tiny bones that relay vibrations to the inner ear |
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| a coiled tube resembling a snail's shell; main component inside the inner ear |
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