The Cardiac Cycle Phase 2 - Isovolumetric Ventricular Contraction

The video explores the isovolumetric contraction phase of the cardiac cycle, where the ventricles contract without changing the blood volume. It explains the role of the EKG, particularly the QRS complex, in showing ventricular depolarization. The video also discusses the pressure dynamics within the heart, the closure of heart valves, and the resulting heart sounds. It concludes with a brief mention of the next phase, ejection.

Discuss the relationship between ventricular contraction and the opening of the aortic valve.

How does the closure of the atrioventricular valves affect atrial pressure?

What is the 'C wave' in atrial pressure, and what causes it?