Zoology-Heart & Circulation
NEET Zoology Heart & Circulation Match the Following Question
Type: Match the Following-match the column-Easy-Class 11
Match Column-I with Column-II.
| Column-I | Column-II |
|---|---|
| (a) Sino-atrial node | (i) Prevents backward flow |
| (b) Atria | (ii) Blood flow from ventricles |
| (c) Semilunar valves | (iii) Pacemaker of the heart |
| (d) Ventricles | (iv) Receives blood from veins |
A
a-iii, b-iv, c-i, d-ii
B
a-i, b-ii, c-iii, d-iv
C
a-ii, b-iv, c-iii, d-i
D
a-iv, b-iii, c-i, d-ii
Correct Answer
Option A
Detailed Explanation
The sino-atrial node is known as the pacemaker of the heart (a-iii). The atria receive blood from the veins (b-iv). The semilunar valves prevent backward flow (c-i). The ventricles are responsible for pumping blood into the arteries (d-ii).
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