Published by:
CGP EDU Academic Team
Published on: September 12, 2026
Match the columns and find out the correct combination
Column-I | Column-II | ||||||||||
A. |
| Chordae | tendineae | p. |
| Closure of | semilunar valves | ||||
Chordae | |||||||||||
tendineae | |||||||||||
Closure of | |||||||||||
semilunar valves | |||||||||||
B. | AV node | q. | Right atrium | ||||||||
C. |
| Second heart | sound | r. | Interatrial septum | ||||||
Second heart | |||||||||||
sound | |||||||||||
D. | SA node | s. | Heart string |
Text Solution
Verified by ExpertsThe correct answer is:
B
To find the correct combinations, we need to match the terms in Column-I with their corresponding definitions in Column-II based on their roles in the human heart.
- Chordae tendineae (A): These are the tendons that connect the papillary muscles to the tricuspid valve and the mitral valve, helping to maintain closure of these valves during ventricular contraction. Therefore, it matches with the incorrect closure of semilunar valves which is not true (p).
- AV node (B): The atrioventricular (AV) node is found in the right atrium and plays a crucial role in controlling the heart rate by delaying the electrical signal before it passes to the ventricles. Thus, it matches with q (Right atrium).
- Second heart sound (C): This sound is associated with the closure of the aortic and pulmonary valves (semilunar valves), hence it matches with r (Interatrial septum).
- SA node (D): The sinoatrial (SA) node is known as the heart's natural pacemaker located in the right atrium, it corresponds with s (Heart string).
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