How does the mitral valve close? O Contraction of the left ventricle forces blood upward and closes the valve. O Chordae tendineae contract and pull the flaps of the valve closed. O Subendocardiac fibers close the valve. O Contraction of the right ventricle forces blood upward and closes the valve.
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Its function is to prevent backflow of blood from the ventricle to the atrium during ventricular contraction (systole). Show more…
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Which of the following statements is CORRECT concerning the mitral valve? Pectinate muscles help open this valve by pulling down on the chordae tendineae. This valve closes when pressure in the left ventricle exceeds that of the left atrium. The papillary muscles open this valve by pushing on the chordae tendineae. This valve opens when pressure in the right atrium exceeds that of the right ventricle.
Adi S.
Structures Associated with Valves Complete the following sentences about the functioning of the valves.
The chordae tendineae (a) close the atrioventricular valves, (b) prevent the AV valve flaps from everting, (c) contract the papillary muscles, (d) open the semilunar valves.
Madhur L.
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