Neurophysiology - Neurophysiology BRW: Chapter 3 Three...

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Neurophysiology BRW: Chapter 3
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Three kinds of electrical states or events in the nervous system: Resting membrane potential Neuron inactive Action potentials Propagation of signals along axons All - or - none, actively transmitted, non - decaying Postsynaptic potentials Initiated at postsynaptic sites on dendrites and cell body Graded, local, passively transmitted, decaying
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Three kinds of electrical states or events in the nervous system: Resting membrane potential Neuron inactive Action potentials Propagation of signals along axons All - or - none, actively transmitted, non - decaying Postsynaptic potentials Initiated at postsynaptic sites on dendrites and cell body Graded, local, passively transmitted, decaying
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The Resting Potential
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combination of processes and forces: Di f usion Selective permeability Electrostatic forces Also, sodium - potassium pumps move potassium ions into the cell and move sodium ions out of the cell. Active processes
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Neurophysiology - Neurophysiology BRW: Chapter 3 Three...

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