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functional unit of nervous system
neuron
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"glue" that supports and maintains neuronal networks
neuroglia
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CNS
brain and spinal cord
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PNS
all other nervous tissue
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Neuron consists of:
dendrite, cell body, axon, axon terminal
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site of communication between 2 neurons (or neuron and another effector)
synapse
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several dendrites; throughout CNS
multipolar neuron
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one main dendrite; vision, hearing, balance, olfaction
Bipolar neuron
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central branch; axon and dendrite root; touch, stretching in PNS
Unipolar neuron
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within CNS, between sensory and motor
interneuron
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mostly unipolar
sensory (afferent) neuron
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mostly multipolar
motor (efferent), interneuron
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