What is the function of the papillary muscles and the chorda

What is the function of the papillary muscles and the chordae tendinae? What is a myocardial infarction? Which of the following statements are true? The left ventricle wall is thicker than the right ventricle wall. The left ventricle pumps blood at a higher pressure than the right ventricle. The left ventricle pumps more blood with each beat than the right ventricle. Explain each choice.

Solution

19. The ventricles of the heart contain papillary muscles. These muscles are attached to the cusps of mitral and tricuspid valves with the help of chordae tendinae. They prevent prolapse of the valve leaflets during systole and prevent backflow of blood to the atrial chambers.