Zoology-Heart & Circulation
NEET Zoology Heart & Circulation Match the Following Question
Type: Match the Following-match the column-Hard-Class 11
Match Column-I with Column-II.
| Column-I | Column-II |
|---|---|
| (a) Sino-atrial Node | (i) Prevents backward flow of blood |
| (b) Atrial Systole | (ii) Average heart rate |
| (c) Stroke Volume | (iii) Initiates cardiac rhythm |
| (d) Atrioventricular Valve | (iv) Volume of blood pumped per beat |
A
a-iii, b-i, c-iv, d-ii
B
a-ii, b-iii, c-i, d-iv
C
a-i, b-ii, c-iii, d-iv
D
a-iii, b-iv, c-ii, d-i
Correct Answer
Option A
Detailed Explanation
The Sino-atrial Node is known as the pacemaker of the heart, initiating cardiac rhythm (a-iii). Atrial Systole refers to the contraction of the atria (b-i), while Stroke Volume is the volume of blood pumped by the heart per beat (c-iv). The Atrioventricular Valve prevents the backward flow of blood (d-ii).
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