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Circulation of Blood

Very short an...

Question

Very short answer type.
Name the heart sounds as heard by stethoscope, caused due to:
closure of semilunar valves at the beginning of ventricular diastole.

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Solution

"Dubb" sound is caused due to the closure of semilunar valves at the beginning of ventricular diastole.

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Q. Very short answer type.
Name the heart sounds as heard by stethoscope, caused due to:
closure of AV valves at the start of ventricular systole

Q. Read the following statements and select the correct option.
A. Damage to chordae tendinae of semilunar valves in aorta causes back flow of blood in left ventricle.
B. Closure of atrio-ventricular valves during ventricular systole generates first heart sound.

Q. Read the following statements and select the correct option.
A. Damage to chordae tending of semilunar valves in aorta causes back flow of blood in left ventricle.
B. Closure of atrio-ventricular valves during ventricular systole generates first heart sound

Q. Very short answer type.
What are the heart sounds heard through the stethoscope when placed on the chest? What produces them?

Q. Which of the following events does not take place during a ventricular systole
i. Due to the ventricular systole, ventricular pressure decreases.
ii. During the end of ventricular systole the semilunar valves open up.
iii. During the start of the ventricular systole the bicuspid and tricuspid valves close
iv. Due to the closure of the atrio-ventricular valves, dup sound is produced.

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