🧵01
Blood Vessel Structure
The three tunics and the lumen of a vessel wall.
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Artery, Vein & Capillary
Compare the three vessel types — walls, valves, and pressure.
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Blood Pressure
Systolic/diastolic, and how pressure falls across the circulation.
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Capillary Exchange
Hydrostatic and osmotic forces filter and reabsorb fluid.
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Circulatory Routes
Pulmonary, systemic, hepatic portal, and coronary circuits.
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Venous Return
The muscle pump and valves push blood back up to the heart.
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