Question

Assertion Left ventricle of heart has a thinner wall than that of right ventricle.
Reason Left ventricle eeds to pump blood to nearby lungs only.
A. Both Assertion and Reason are true and Reason is the correct explanation of Assertion.
B. Both Assertion and Reason are true, but Reason is not the correct explanation of Assertion
C. Assertion is true, but Reason is false
D. Assertion is false, but Reason in true.

Answer 1

Correct Answer - D
Four-chambered (two ventricles and two auricles) heart is present in mammals . The left ventricle of heart receives oxygenated blood from left auricle, while right ventricle recieves deoxygenated blood from right auricle , Right ventricle has thinner wall because it pumps deoxygenated blood to nearby lungs. While left ventricle has thicker wall because it pumps oxygenated blood to different organs of the body.