PHGY 311-Oct 3rd

Hyperpolarizingthemembrane30ofinactivatedgoestoopen

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: ndsodiumconductancebecomessosmall (nearlyzero)! - Whenmembranestimuluscomes! Sincethemembranepottentialinfluencestheproportionofthechannelsopeninthe restingstate! Hyperpolarizingthemembrane,30%ofinactivatedgoestoopen Theyarenotstrongenoughtomakeanactionpottential,buttheychangethe proportionofthechannelsopen! Thatsigmoidalcurveistheratiooftheopenchannelstoinactivatedones!!! Normallycl ­ But Outwardcurrent=+iv...
View Full Document

Ask a homework question - tutors are online