Which of These Actions is Done by the Chordae Tendineae

Question

Which of these actions is done by the chordae tendineae
A)keeping the AV valves from closing during ventricular contraction
B)holding the AV valves open during diastole
C)holding the right and left ventricles together
D)transmitting electrical impulses from the atria to the ventricles

Accepted Answer

The chordae tendineae are thin, fibrous cords that connect the cusps of the atrioventricular (AV) valves to the papillary muscles of the ventricles. During ventricular contraction, the papillary muscles contract and pull on the chordae tendineae, which in turn prevents the AV valves from closing and allows blood to flow from the ventricles into the aorta and pulmonary artery.