Chapter3AdditionalSlides

Chapter3AdditionalSlides - messages from other neurons...

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EXtra bio-psychology slides
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Resting Potential Tiny charge between inside, outside of neuron Created by electrically charged particles (ions) Some concentrated outside the cell Sodium and chloride ions Some concentrated inside the cell Potassium ions How is the charge maintained? Sodium-potassium pump Selectively permeable cell membrane
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The Action Potential Change in potential, primarily because of
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Unformatted text preview: messages from other neurons Excitatory messages: Cell loses the negative charge Depolarization Inhibitory messages: Cell becomes more negatively charged Hyperpolarization Neural Communication Sodium Pump Active transport mechanism that moves impluses down the axon. All or nothing!! Refractory period during this stage the neuron can not send a signal....
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This note was uploaded on 05/08/2008 for the course PSY 1013 taught by Professor Perry during the Spring '08 term at Texas San Antonio.

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Chapter3AdditionalSlides - messages from other neurons...

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