Mastering Atrial Pressure Regulation for the MCAT: Systolic, Diastolic, and Mean Pressure Explained

One of the most tested topics in MCAT physiology is the cardiovascular system—and within that, pressure regulation is a recurring favorite. Today’s breakdown focuses on atrial pressure, especially systolic, diastolic, and mean arterial pressure (MAP). With help from King of the Curve’s high-yield visual, we’ll make this graph feel intuitive, not intimidating.