lecture_10_10_11

lecture_10_10_11 - Voltage-gated channels give rise to the...

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: Voltage-gated channels give rise to the different events occurring during an action potential. The average threshold of a voltage gated sodium channel roughly coincides with the threshold of an action potential. The opening of voltage gated sodium channels causes the rising phase of the action potential. The delay in opening of the voltage gated potassium channels results in the rising phase of the action potential. The delay in closing of the voltage gated potassium channels results in the undershoot of the action potential. The delay in closing of the voltage gated potassium channels results in the relative refractory period of the action potential. Inactivation of the voltage gated sodium channels causes the absolute refractory period where VG-Na channels are stuck in a state with the inactivation gate blocked until the cell is hyperpolarized.. Inactivation of the voltage gated sodium channels causes an action potential to travel travel like a burning fuse (which we will describe in a moment).Inactivation of the voltage gated sodium channels causes an action potential to travel travel like a burning fuse (which we will describe in a moment)....
View Full Document

This note was uploaded on 11/16/2011 for the course NPB NPB 100 taught by Professor Campbell during the Spring '10 term at UC Davis.

Ask a homework question - tutors are online