Advanced Mitral Valve Quiz
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This quiz contains 10 questions. Click below to begin.
Q1. Which papillary muscle usually has a dual coronary arterial supply?
- Anterolateral papillary muscle
- Septal papillary muscle
- Anterior right ventricular papillary muscle
- Posteromedial papillary muscle
Q2. Which mitral papillary muscle commonly has a single dominant arterial supply?
- Posteromedial papillary muscle
- Neither receives coronary blood
- Anterolateral papillary muscle
- Both always have identical supply
Q3. Which leaflet has fibrous continuity with the aortic valve?
- Posterior leaflet
- Both leaflets equally throughout
- Neither leaflet
- Anterior leaflet
Q4. What is the fibrous relationship between the mitral and aortic valves called?
- Pulmonary-mitral continuity
- Coronary continuity
- Aortic-mitral continuity
- Atrioventricular dissociation
Q5. Why do papillary muscles contract during ventricular systole?
- To actively open the valve
- To prevent leaflet prolapse
- To increase atrial pressure
- To close the aortic valve
Q6. Do papillary muscles actively close the mitral valve?
- No, they open the valve instead
- No, they stabilize the leaflets
- Yes, they pull the leaflets shut
- Yes, during diastole only
Q7. Rupture of a mitral papillary muscle can directly produce what functional problem?
- Tricuspid atresia
- Aortic stenosis
- Mitral regurgitation
- Pulmonary stenosis
Q8. During normal systole, mitral valve closure prevents flow in which direction?
- Aorta to coronary arteries
- Left atrium to left ventricle
- Left ventricle to aorta
- Left ventricle to left atrium
Q9. Which components together form the mitral valve apparatus?
- Cusps, aortic sinuses, and lunules only
- Atria and pulmonary veins only
- Annulus, leaflets, chordae, and papillary muscles
- Myocardium and pericardium only
Q10. Which statement best describes normal mitral valve function?
- Allows diastolic filling and prevents systolic backflow
- Opens through papillary muscle contraction
- Directs blood from the right atrium to the left ventricle
- Allows systolic atrial filling and prevents aortic flow