MEDICAL
HEART AND PERICARDIUM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which heart sound is the closure offer the SL valves?
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S1
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S2
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S3
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S4
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Explanation:
Detailed explanation-1: -The second heart sound (S2) represents closure of the semilunar (aortic and pulmonary) valves (point d).
Detailed explanation-2: -It has two audible components, the aortic closure sound (A2) and the pulmonic closure sound (P2), which are normally split on inspiration and virtually single on expiration. S2 is produced in part by hemodynamic events immediately following closure of the aortic and pulmonic valves.
Detailed explanation-3: -S2. The second heart sound, called S2, makes a “dub” sound caused by the closure of the semilunar (aortic and pulmonary) valves following ventricular systole. S2 is split because aortic valve closure occurs before pulmonary valve closure.
There is 1 question to complete.