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CHAPTER 14: MITRAL VALVE REPAIR
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Select the one best answer for each of the following questions.
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1. Which of the following statements concerning the insertion of the anterior leaflet to the mitral annulus is true?
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a. It inserts into the posterior annulus.
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b. It inserts into one-third of the annulus.
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c. It inserts into two-thirds of the annulus.
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d. It inserts into half of the annulus.
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e. Its insertion covers the entire annulus.
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2. Concerning the papillary muscles of the mitral valve, which of the following statements is true?
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a. The anterior papillary muscle is much larger than the posterior papillary muscle.
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b. The chordae of the anterior leaflet are attached to the anterior papillary muscle, whereas those of the posterior leaflet are attached to the posterior papillary muscle.
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c. Their morphology may vary among individuals.
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d. The anterior papillary muscle arises from the septum.
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e. They are tendinous structures with little or no blood supply.
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3. Concerning the mitral leaflets, all the following statements are true except:
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a. The anterior leaflet is much larger than the posterior leaflet.
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b. Each leaflet has its own papillary muscle.
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c. The anterior leaflet has a small annular attachment when compared with that of the posterior leaflet.
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d. The anterior leaflet is attached to the annulus between the two fibrous trigones of the heart.
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4. Echocardiographic findings in patients with chronic ischemic mitral regurgitation include:
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5. Prolapse of the posterior leaflet can be due to all of the following except:
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d. Dilated left ventricle
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e. Myocardial infarction with ruptured papillary muscle
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