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17 Cards in this Set

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