What are equiped with the chordae tendinea and papillary muscles?

Chordae tendineae and papillary muscles are components of the heart. Here's an explanation:

Chordae tendineae: These are thin, fibrous cords that connect the papillary muscles to the cusps (leaflets) of the heart valves. They prevent the valves from bulging into the heart chambers when blood flows through them.

Papillary muscles: These are small, conical-shaped muscles located on the inner walls of the heart ventricles (the lower chambers). They contract during each heartbeat, pulling on the chordae tendineae, which in turn close the heart valves and prevent backflow of blood into the atria (the upper chambers).

So, the chordae tendineae and papillary muscles work together to ensure proper functioning of the heart valves. They play a crucial role in maintaining the one-way flow of blood during the cardiac cycle.