The right atrium (RA), also known as the right upper chamber of the heart, receives the oxygen-poor blood. From there, the tricuspid valve (TV) allows blood to pass into the right ventricle (RV), also known as the right lower chamber of the heart.
Does the tricuspid valve allow oxygenated blood to pass through it?
Deoxygenated blood can pass between the right atrium and right ventricle thanks to the tricuspid heart valve.
Does the right side of the heart have oxygen-rich blood flow?
Blood that is low in oxygen is drawn from your veins by the right side of your heart, which then pumps it to your lungs for oxygenation and carbon dioxide removal. Blood that is rich in oxygen is drawn from your lungs and pumped through your arteries by the left side of your heart.
Where does blood with low oxygen content enter the heart first?
Through two big veins, the inferior vena cava and superior vena cava, oxygen-poor blood from all around your body enters your right atrium. To allow blood to flow from your right atrium to your right ventricle, your tricuspid valve opens.
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