NEET Zoology Cardiac Cycle Match the Following Question
Match Column-I with Column-II.
Column-I Column-II (a) Atrial contraction (i) Closure of semilunar valves (b) Ventricular diastole (ii) Blood ejection into aorta (c) Ventricular systole (iii) Filling of ventricles (d) Closure of atrioventricular valves (iv) Blood flow to atria
Choose the correct matching:
a-i, b-iii, c-ii, d-iv
a-ii, b-i, c-iv, d-iii
a-iv, b-ii, c-i, d-iii
a-iii, b-iv, c-i, d-ii
Correct Answer
Detailed Explanation
During the cardiac cycle, atrial contraction corresponds to the closure of semilunar valves once the pressure in the ventricles rises during systole, allowing for blood ejection into the aorta. The subsequent phases include diastole for filling the ventricles and closure of the atrioventricular valves before contraction.
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