Heart Physiology - Cardiac Cycle, Output and Regulation

Explore heart physiology through a comprehensive video playlist that visually explains the cardiac cycle, cardiac output, and heart regulation mechanisms. Master fundamental concepts including cardiomyocyte function, action potentials, automaticity, absolute and relative refractory periods, and pressure-volume changes throughout the cardiac cycle. Learn about preload and afterload effects on cardiac performance, pressure-volume diagrams, and the three main regulatory mechanisms controlling heartbeat: myogenic, neural, and hormonal control systems. Understand autonomic nervous system influence on cardiac function and how various factors affect cardiac output. The playlist includes detailed explanations of cardiac muscle electrophysiology, the sequential events of systole and diastole with corresponding pressure changes, and the integration of mechanical and electrical cardiac events. Exclusive quiz videos for channel members provide opportunities to test comprehension and reinforce learning of cardiomyocyte properties, cardiac cycle phases, cardiac output determinants, and heartbeat regulation mechanisms.