ANATOMY
CHEST AND CARDIOVASCULAR
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The opening of semilunar valves is due to
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increased ventricular pressure
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decrease ventricular pressure
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increased aortic pressure
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increase in artrial volume
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Explanation:
Detailed explanation-1: -The rising left ventricular pressure exceeds the pressure in the aorta and the rising right ventricular pressure exceeds the pressure in the pulmonary artery and thus the semilunar valves open.
Detailed explanation-2: -Abnormal elevation of right ventricular systolic pressure occurs in outflow obstruction (e.g., pulmonary valve stenosis, pulmonary artery bands, or stenosis of the pulmonary artery branches), pulmonary artery hypertension, or lesions such as ventricular septal defects.
Detailed explanation-3: -Increased ventricular pressure causes closing of the semilunar valves.
There is 1 question to complete.