The study of blood flow and the forces involved in circulation, including pressure and resistance.
From Greek 'haima' (blood) + 'dynamis' (power, force). A modern cardiology term combining fluid dynamics with blood physiology, developed in the 20th century.
Understanding hematodynamics revealed why high blood pressure damages arteries—it's not just the fluid, it's the shear force battering vessel walls, like water pressure on a dam!
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