CARDIOLOGY
MITRAL STENOSIS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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As the left ventricle begins to contract, the acrtic valve if forced to what?
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Tightened
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Losened
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Open
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Closed
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Explanation:
Detailed explanation-1: -When the left ventricle contracts, the mitral valve closes and the aortic valve opens. This is so blood flows into the aorta and out to the rest of the body. While the left ventricle is relaxing, the right ventricle also relaxes. This causes the pulmonary valve to close and the tricuspid valve to open.
Detailed explanation-2: -The initiation of leaflet separation (i.e., valve opening) is a dynamic process that occurs in the presence of a negative LV-aorta pressure gradient (−8.5±2.6 mmHg)during an extremely short period of time at end IVC just before ejection starts which did not allow time for aortic regurgitation to occur.
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