Question

Read the given passage and answer : Oxygen- rich blood from the lungs comes to the thin-walled upper chamber of the heart on the left. The left upper chamber (A) then relaxes . It then contracts and the blood is allowed to enter the next chamber (B) , as it expands . When the muscular left lower chamber of heart contracts the blood is pumped out to the body via aorta . Deoxygenated blood reaches from the body to the upper chamber on the right side of the heart (C) and it expands . As this part contracts, the corresponding lower chamber (D) dilates. This transfers the blood to right ventricle , which in turn pumps it to the lungs for oxygenated. Which of these correctly represents the label A, B, C, D in the above passage -
(a) A - Left atrium, B - Left Ventricle , C - Right atrium, D - Right ventricle
(b) A - Right ventricle, B - Left atrium , C - Right atrium, D - Right ventricle
(c) A - Right atrium, B - Right Ventricle , C - Left atrium, D - Left ventricle
(a) A - Left ventricle , B - Right atrium, C - Right ventricle , D- Left atrium

Answer 1

Answer:

Correct answer is c)

Explanation:

C)A - Right atrium, B - Right Ventricle , C - Left atrium, D - Left ventricle

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