PHGY 311-Oct 3rd


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Unformatted text preview: ndsodiumconductancebecomessosmall (nearlyzero)! - Whenmembranestimuluscomes! Sincethemembranepottentialinfluencestheproportionofthechannelsopeninthe restingstate! Hyperpolarizingthemembrane,30%ofinactivatedgoestoopen Theyarenotstrongenoughtomakeanactionpottential,buttheychangethe proportionofthechannelsopen! Thatsigmoidalcurveistheratiooftheopenchannelstoinactivatedones!!! Normallycl ­ But Outwardcurrent=+iv...
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This note was uploaded on 12/15/2012 for the course PHGY 311 taught by Professor Cooper during the Fall '08 term at McGill.

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