Heart

5. What period follows depolarization of the myocardium and represents a period during which no new cardiac potential can be propagated?
6. edema Continuous increases in left ventricular filing pressures result in which disorder?
9. The Bainbridge reflex is thought to be initiated by sensory neurons in which cardiac location?
10. During the cardiac cycle, which structure directly delivers action potential to the ventricular myocardium?
12. What is the most important negative inotropic agent?
13. The coronary ostia are located in the:

1. What can shorten the conduction time of action potential through the atrioventricular (AV) node?
2. The resting heart rate in a healthy person is primarily under the control of which nervous system?
3. Which phase of the normal myocardial cell depolarization and repolarization correlates with diastole?
4. Which complex (wave) represents the sum of all ventricular muscle cell depolarizations?
7. Which chamber of the heart endures the highest pressures?
8. Where is the major cardiovascular center in the central nervous system?
11. The coronary sinus empties into which cardiac structure?