During the late phases (plateau) of the action potential of fast myocardium (e.g. ventricle) which is not true of the sodium channel? O A. Defects in inactivation can prolong the action potential and lead to long QT syndrome. OB. It is refractory. OC.A slower inactivation gate keeps the channel shut in response to sustained depolarization. OD. It fires transiently early on in the action potential and is not active during the late plateau. OE. All are true.
During the late phases (plateau) of the action potential of fast myocardium (e.g. ventricle) which is not true of the sodium channel? O A. Defects in inactivation can prolong the action potential and lead to long QT syndrome. OB. It is refractory. OC.A slower inactivation gate keeps the channel shut in response to sustained depolarization. OD. It fires transiently early on in the action potential and is not active during the late plateau. OE. All are true.
Biomedical Instrumentation Systems
1st Edition
ISBN:9781133478294
Author:Chatterjee
Publisher:Chatterjee
Chapter7: Instrumentation In Diagnostic Cardiology
Section: Chapter Questions
Problem 12P
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