The sound of 'lubb' is produced during closure of

Bicuspid valve

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Tricuspid valve

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Semilunar valves

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Both A and B

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Solution

The correct option is D Both A and B
Heart sounds are the noises generated by the beating heart and the resultant flow of blood through it.
In healthy adults, there are two normal heart sounds often described as a 'lubb' and a 'dubb' (or 'dupp'), that occur in sequence with each heartbeat.
These are the first heart sound and second heart sound, produced by the closing of the AV (atrio ventricular) valves and semilunar valves, respectively.

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Similar questions

Heart sounds are produced due to
(a) Closure of tricuspid and bicuspid valves
(b) Rushing of blood through valves producing turbulence
(c) Closure of atrioventricular and semilunar valves
(d) Entry of blood into auricles

Q. "Lubb" sound produced during heart beat is caused by :

The second heart sound (dubb) is associated with the closure of ?
(a) tricuspid valve
(b) semilunar valve
(c) bicuspid valve
(d) tricuspid and bicuspid valve

Q. 'Dup' sound is produced during closure of

Q. 'Dupp' sound is produced during closure of

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