Assertion (A) Left atrium receives oxygenated blood from the lungs by pulmonary vein.
Reason (R) In the lung, deoxygenated blood is purified and oxygenated blood is carried
in pulmonary artery.
(a) Assertion is true and Reason is true and Reason is correct explanation of Assertion.
(b)Assertion is true and Reason is true and Reason is not correct explanation of Assertion.
(c) Assertion is true but Reason is false.
(d) Assertion is false but Reason is true.
Answers
c) assertion is true and reason is false
Answer:
(a) Assertion is true and Reason is true and Reason is correct explanation of Assertion.
Explanation:
It is correct to choose option (a).
(A) is a true statement. The pulmonary veins carry oxygenated blood from the lungs to the left atrium. Only the pulmonary veins in the body transport oxygenated blood.
It is also true to claim (R). By exchanging carbon dioxide for oxygen through the alveoli,the lungs purify, the body's deoxygenated blood. The pulmonary veins return the oxygenated blood to the heart. The pulmonary artery transports the deoxygenated blood from the heart to the lungs.
Additionally, Assertion (A) is correctly explained by Reason (R), which also explains how oxygenated blood is transported to the left atrium via the pulmonary veins.
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