Hemodynamics is the study of blood flow and the forces involved in circulation within the cardiovascular system. It examines how blood moves through the heart, arteries, veins, and capillaries, and how factors like pressure, resistance, and blood volume affect this flow. Understanding hemodynamics is crucial for diagnosing and treating various medical conditions related to blood circulation. Key components of hemodynamics include blood pressure, which is the force exerted by circulating blood on the walls of blood vessels, and cardiac output, the amount of blood the heart pumps in a minute. These factors help healthcare professionals assess heart function and overall health.