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This 1 page One Day of Notes was uploaded by Leslie Richardson on Monday January 26, 2015. The One Day of Notes belongs to a course at a university taught by a professor in Fall. Since its upload, it has received 75 views.
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Date Created: 01/26/15
Nerves Nervous Transmission a series of depolarizations a WAVE of depolarization also called an action potential Resting membrane potential 70 mv 1 mv 1000 v 70 mv more negative inside than outside selectively permeable constantly pumping sodiumNa inpotassiumK out at rest more sodium is OUTside diffusion diffusion passive process always from high concentration to low polarized different heavy debatenorthampsouth pole example depolarization sodium Na entering the axon causes this After Sodium Na gates close Potassium K gates open K pours OUT This is called diffusion repolarization to make something polar again threshold level of depolarization 40mv pic in photos threshold all or none wherever you have myelin there are NO gates nodes of ranvier fast diffusion happens here myelinated axon speeds up nervous transmission peristalsis
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