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17 Cards in this Set
- Front
- Back
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Neuron
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Indivisual nerve cell
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Dendrites
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Neuron fibers that receive messages
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Soma
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Main body of a nueron cell
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Axon
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Fiber that carries info way from the cell body
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Axon Terminals
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Branching fibers at the ends of axons
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Ion Channels
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Tiny openings through the axon membrane
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Negative after-potential
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Drop in electrical charge below the resting potential
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Synapse
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Microscopic space between two neurons, over which messgages pass
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Neurotransmitter
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Chemical released by a neuron that CHANGES ACTIVITY in other NEURONS!!! GOD DAMNIT!!!!!
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Receptor Sites
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Areas on the surface of neurons that are sinsitive to NERUTRANSMITTERS
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Neuropeptides
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Brain chemicals that regulate the ativity of neurons
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Nerve
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Bundle of nueron fibers
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Myelin
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Fatty layer coating axons
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Neurilemma
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Layer of cells that holds axons
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Neurogenisis
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Production of new brain cells
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Central Nervous System
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Brain and Spinal Cord
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Peripheral Nervous System
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Parts of the nervous system OUTSIDE the CNS
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