| A | B |
|---|
| Frank Starling's Law states | increased diastolic volume will stretch myocardial fibers & produce greater SV |
| increased venous return producing increase in SV due to diastolic stretching of myocardial fibers is known as | Starling's Law of the Heart |
| phase of ventricular action potential that Ca enters the cell | phase 2 - plateau |
| phase 2 of cardiac muscle action potential is associated with | opening of Ca channels |
| depolarization phase of ventricular action potential is associated with | opening of Na ion channels |
| phase of action potential associated with rapid efflux of K+ ions | phase 3 |
| depolarization of cardiac muscle cell occurs as result of | rapid movement of Na into the cell |
| difference between end-systolic volume & end-diastolic volume | stroke volume (SV) |
| aortic valve opens during | ventricular systole |
| during ventricular systole, valve that opens | aortic valve |
| phase of cardiac cycle with mitral valve open | ventricular diastole |
| during ventricular diastole, which valve is open | mitral valve |
| first heart sound is caused by | closure of the AV valves during systole |
| closure of the AV valves during systole would lead to | the first heart sound |
| with baroreceptor reflex, normal arterial BP increases, leading heart rate to | decrease heart rate |
| with baroreceptor reflex, normal arterial blood pressure decreases, leading heart rate to | increase heart rate |
