P101 notes 2-10.12

P101 notes 2-10.12 - Cells in the nervous system Neurons-...

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Cells in the nervous system Neurons- receive, transmit, integrate info Sensory: messages to spinal cord, brain Interneuron’s” connect sensory, motor neurons Motor neurons” messages from spinal cord, brain Glial cells- “support” cells Reflexes Processed in spinal cord, not brain Anatomy of a neuron” overview Dendrites Receive info 100 of branches Enable receiving info from many sources Soma Main “body” of the cell A cell body that contain the nucleus and most of the organelles Metabolic center Genetic material stored here Axon The function is to send the electrochemical message on to the next cell Transmits info to the dendrites or cell bodies of neighboring neurons Action potential travels down the axon to other neurons Terminal buttons These release chemicals (neurotransmitters) Resting potential Tiny charge between inside, outside of neuron (-70mv) Created by electrically charged particles (ions)
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This document was uploaded on 11/03/2011 for the course PSY-P 101 at Indiana.

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P101 notes 2-10.12 - Cells in the nervous system Neurons-...

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