Heart function and the cardiac cycle
High-school/pre-med-level questions on the cardiac cycle, heart sounds, valve events, ECG relationships, and stroke volume.
Pre-med/IB-style questions on the determinants of arterial blood pressure (CO, TPR, compliance), rapid neural control (baroreflex, autonomic nervous system), slower hormonal control (RAAS, ADH, ANP), and classic physiology scenarios (posture, exercise, hemorrhage, temperature).