Tetralogy of Fallot Animation – Part 1 – Normal Blood Flow through the Heart
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This animation, first in a set of four, depicts normal blood flow through the heart, which is characterized by six events:
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- Blood enters the heart through the inferior and superior vena cava on the right, emptying oxygen-poor blood from the body into the right atrium.
- On the left, the pulmonary vein empties oxygen-rich blood from the lungs into the left atrium.
- Blood then flows from the right atrium into the right ventricle through the tricuspid valve. When the ventricles are full, the tricuspid valve shuts and the ventricles contract.
- On the left, blood flows from the left atrium into the left ventricle through the mitral valve. When the ventricles are full, the mitral valve shuts and the ventricles contract.
- Next, blood leaves the heart through the pulmonary valve, into the pulmonary artery and onto the lungs.
- On the left, blood leaves the heart through the aortic valve, into the aorta and onto the body.