In mitral regurgitation, blood regurgitates from the left ventricle into which chamber?

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Prepare for your Advanced Health Assessment Cardiovascular Test. Use flashcards and multiple-choice questions, each with hints and explanations, to ace your exam!

Multiple Choice

In mitral regurgitation, blood regurgitates from the left ventricle into which chamber?

Explanation:
Mitral regurgitation involves backward flow through the mitral valve, which sits between the left atrium and left ventricle. During systole, the left ventricle contracts and pressure rises above the left atrium; if the mitral valve is incompetent, blood leaks backward into the left atrium rather than staying in the ventricle. So the regurgitant flow goes from the left ventricle into the left atrium. This is distinct from regurgitation that would involve the right heart or the aorta, which occur with other valves. The backward flow into the left atrium increases its pressure and volume, potentially leading to pulmonary congestion if severe.

Mitral regurgitation involves backward flow through the mitral valve, which sits between the left atrium and left ventricle. During systole, the left ventricle contracts and pressure rises above the left atrium; if the mitral valve is incompetent, blood leaks backward into the left atrium rather than staying in the ventricle. So the regurgitant flow goes from the left ventricle into the left atrium. This is distinct from regurgitation that would involve the right heart or the aorta, which occur with other valves. The backward flow into the left atrium increases its pressure and volume, potentially leading to pulmonary congestion if severe.

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