What is the name of the extensions of the ventricular myocardium that prevent the valves from opening into the atria?
A)chordae tendinae
B)interventricular septum
C)interatrial septum
D)papillary muscles

Question

Quizplus · Accepted Answer

Papillary muscles are muscular projections from the ventricular walls that attach to the chordae tendinae, which in turn connect to the atrioventricular valves (mitral in the left and tricuspid in the right). The papillary muscles contract during ventricular systole, pulling on the chordae tendinae and preventing the valves from opening back into the atria, ensuring one-way blood flow through the heart.

What Is the Name of the Extensions of the Ventricular