Which Structure Connects the Cusps of the AV Valves to the Ventricles

Question

Which structure connects the cusps of the AV valves to the ventricles?
A) Purkinje fibers
B) AV node
C) Bundle of His
D) Chordae tendineae

Accepted Answer

The chordae tendineae are tendinous cords that connect the cusps, or flaps, of the AV valves (tricuspid and mitral valves) to the papillary muscles in the ventricles. They help to anchor the valves in place and prevent them from prolapsing, or flipping upside down, into the atria during ventricular contraction.