The branch of physiology that studies the physical forces and mechanical properties of blood circulation, including pressure, flow rate, and resistance.
From Greek 'haima' (blood) and 'dynamis' (power/force), with '-ics' indicating a field of study. Developed as a scientific discipline in the 19th century when physicists applied mechanics to biological circulation.
Hemodynamics is why your blood vessels are designed the way they are—smaller vessels create resistance so pressure builds up, which is why capillaries are thin and aortas are thick, all following the laws of fluid mechanics!
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