Cardiac Muscle Physiology Flashcards
1
Q
Nernst Equation
A
Equilibrium = (RT)/(zF) x ln(Xout/Xin)
R= universal gas constant
T= absolute temperature
z= valency of ion
F= faraday consant
Xout= Extracellular conc of ion
Xin= Intracellular conc of ion
2
Q
Resting membrane potential of cardiac non-pacemaker cells
A
-90mV
3
Q
Where are pacemaker cells found and what is their intrinsic rate (bpm)
A
SA node: 70-80bpm
AV Node: 40-60bpm
Bundle of His: 15-40bpm
4
Q
Cardiac Pacemaker Cells
A
5
Q
Cardiac Contractile Cells
A
