Biology
Assertion (A): The main pulmonary artery pumps oxygenated blood from the right ventricle into the lungs.
Reason (R): Inside the lungs, the artery divides and divides several times to form capillaries around the air sacs.
- A is True, and R is false.
- A is False, and R is true.
- Both A and R are true.
- Both A and R are false.
Respiratory System
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Answer
A is False, and R is true
Reason — The pulmonary artery does not pump oxygenated blood. In fact, it pumps deoxygenated blood from the right ventricle to the lungs for oxygenation. After oxygenation, the oxygenated blood returns to the heart through the pulmonary veins.
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