Doctors use a stethoscope to hear the sounds | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(D) The cardiac cycle produces two main sounds,often described as 'lub' and 'dup'.$1$. The first heart sound,'lub',is associated with the closure of t

Vedclass · Accepted Answer

Semilunar valves close down after the blood flows into vessels from the ventricles

Vedclass · Answer

(D) The cardiac cycle produces two main sounds,often described as 'lub' and 'dup'.$1$. The first heart sound,'lub',is associated with the closure of the atrioventricular $(AV)$ valves.$2$. The second heart sound,'dup',is associated with the closure of the semilunar valves.$3$. This closure occurs at the end of ventricular systole,preventing the backflow of blood from the pulmonary artery and aorta into the ventricles.Therefore,the correct option is $(d)$.

Doctors use a stethoscope to hear the sounds produced during each cardiac cycle. The second heart sound is heard when:

Similar Questions

The accompanying diagram shows the three stages in the cardiac cycle. Which of the following is the correct sequence?

The duration of the ventricular diastole in a normal cardiac cycle is

What is the contraction of the heart called?

During ventricular diastole,

Identify the correct sequence of the cardiac cycle.

Vedclass Test Series

Exam Paper Generator

Online Exam Module