Biology, asked by KomalNaidu, 11 months ago

explain the working of heart step bh step..
pls

Answers

Answered by pranjal0407

Blood flows through your heart and lungs in four steps: The right atrium receives oxygen-poor blood from the body and pumps it to the right ventricle through the tricuspid valve. ... The left atrium receives oxygen-rich blood from the lungs and pumps it to the left ventricle through the mitral valve.

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