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10 Cards in this Set
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the specialized cells that conduct impulses through the nervous system and contain 3 major parts-a cell body, dendrites, and an axon.
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Neurons
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have a distinctive shape, are protein molecules on the surfaces of dendrites and cell bodies
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Receptors
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they branch out from the cell body and look like leafless branches of a tree & r the primary receivers of signals from other neurons
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Dendrites
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contains the nucleus and carries out the metabolic or life sustaining functions of a neuron
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Cell Body
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the slender tail like extension of the neuron that transmits signals to the dendrites or cell body of other neurons and to muscles, glands and other parts
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axon
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the axon terminals are separated from the receiving neurons by these tiny fluid filled gaps
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synaptic clefts
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a chemical substance that is released into the synaptic cleft from the axon terminal. it binds to appropriate receptor sites on the dendrites or cell body influencing the cell either to fire or not to fire
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Neurotransmitters
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Its composed of the brain and the spinal cord and the peripheral nervous system
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Central nervous system
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it connects the central nervous system to all other parts of the body
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Peripheral nervous system
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everything which we are aware of at any given time our thoughts, feelins,sensations and perceptions of the external environment
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Consciousness
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