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Right Side of the Heart
-Blood enters the heart through two large veins, the inferior and superior vena cava, emptying oxygen-poor blood from the body into the right atrium of the heart.
-As the atrium contracts, blood flows from your right atrium into your right ventricle through the open tricuspid valve.
-When the ventricle is full, the tricuspid valve shuts. This prevents blood from flowing backward into the atria while the ventricle contracts.
-As the ventricle contracts, blood leaves the heart through the pulmonic valve, into the pulmonary artery and to the lungs where it is oxygenated.
SECOND:
Left Side of the Heart
-The pulmonary vein empties oxygen-rich blood from the lungs into the left atrium of the heart.
-As the atrium contracts, blood flows from your left atrium into your left ventricle through the open mitral valve.
-When the ventricle is full, the mitral valve shuts. This prevents blood from flowing backward into the atrium while the ventricle contracts.
-As the ventricle contracts, blood leaves the heart through the aortic valve, into the aorta and to the body.
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