Home Biology Body Fluids and Circulation Blood and Lymph Pressure And Vessels First cardiac sound (lub) is associated with…
Biology Body Fluids and Circulation Blood and Lymph Pressure And Vessels Single Correct MCQ
Published on: August 23, 2026

First cardiac sound (lub) is associated with -

A

Closure of tricuspid and bicuspid valves

B

Opening of tricuspid and bicuspid valves

C

Closure of semilunar valves

D

Opening of semi lunar valves

Share this question

WhatsApp

For Instagram sharing, use “Apps” on mobile or copy the link.

Text Solution

Verified by Experts
The correct answer is:
A

(a)


During each cardiac cycle two prominent sounds are produced lub and dub. The first heart sound (lub) is associated with the closure of the tricuspid and bicuspid valves whereas the second heart sound (dub) is associated with the closure of the semilunar valves.

Previous Question Next Question

Prepare Smarter with CGP Edu

Get practice questions, solutions, and test series in one place.

Write a Review

Share your experience with this question and solution.

Commentary

Send your comment, doubt, correction, or feedback to admin.

Student Reviews

What students say about this solution

No reviews yet. Be the first to write a review.

Similar Questions

Explore conceptually related problems

The type of proteins found in plasma is
Serum differs from blood in
Which is largest among the given types of leucocytes?
During blood transfusion, if blood groups of recipient and donor are not correctly matched, it will…
Example of Rh incompatibility is
If husband is Rh+ and wife is Rh− then
CG
CGP Question Assistant Question Bank + AI Help
Hi! Type your question or upload one screenshot. First I will search related questions from CGP Edu Question Bank. If none match, type YES and I will solve it with AI.
Upload only one screenshot at a time. Flow: Question Bank first → If not matched, type YES for AI solution.