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CHAPTER 10: MITRAL VALVE
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Select the one best answer for each item.
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1. With regard to the mitral valve leaflets, which of the following statements is true?
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a. The anterior mitral leaflet is divided into three scallops by clefts.
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b. The posterior leaflet occupies approximately two-thirds of the mitral annulus.
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c. The posterior leaflet is associated with the aortic valve.
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d. The commissures extend all the way to the mitral annulus.
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2. Which of the following statements related to the function of the mitral valve is false?
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a. It keeps the left atrial pressure low in order to prevent pulmonary hypertension.
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b. It allows unobstructed flow to the left ventricular outflow tract during diastole.
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c. It prevents the backflow of blood to the left atrium during systole.
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d. It offers little resistance to ventricular filling during diastole.
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3. Which of the following structures is not included in the mitral valvar complex?
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e. Aortomitral fibrous continuity
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4. Papillary muscle dysfunction:
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a. Is more commonly limited to the anterolateral papillary muscle
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b. Often leads to muscle rupture after an ischemic event
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c. Is seen more commonly in the posteromedial papillary muscle
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d. Is seldom a cause of mitral regurgitation
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5. Which of the following views does not allow complete visualization of the mitral valve?
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a. Midesophageal four chamber
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b. Midesophageal mitral commissural
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c. Midesophageal aortic valve short axis
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d. Transgastric two chamber
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e. Deep transgastric long axis
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6. Which combination of mitral valve segments is demonstrated by the midesophageal four-chamber view (20 to 30 degrees)?
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