A Blood Flow Christmas Carol: How Blood Flows Through the Heart

The video tutorial explains the journey of blood through the heart, detailing the flow from the vena cava to the right atrium, through the tricuspid valve, and into the right ventricle. It highlights the heart's role in pumping oxygen and nutrients throughout the body. The tutorial also covers pulmonary circulation, where blood travels to the lungs via the pulmonary artery and returns through the pulmonary vein to the left atrium. Finally, it describes systemic circulation, where blood flows through the aortic valve into the aorta, completing the cycle.

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