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Watch the Blood Move | Inside a Beating Heart 🫀🔬
Blood does not simply enter the heart and immediately leave—it follows a precisely controlled pathway through four chambers and four valves with every cardiac cycle. 🫀🩸 Oxygen-poor blood returns from the body to the right atrium, passes through the tricuspid valve into the right ventricle, and is then pumped through the pulmonary valve ...
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