Question

The papillary muscles contract after the other ventricular muscles so that they can take up the slack on the chordae tendineae before the full force of ventricular contractions sends blood against the atrioventricular (AV) valve flaps. True False

Answer 1

Answer:

FALSE

Explanation:

Papillary muscles are found in the bottom chambers of the heart and attaches to the tricuspid  and bicuspid valve through tendons to facilitate blood flow during systole. It also prevent prolapse. These muscles contract before the contraction of ventricular muscles (or before the contraction of ventricles) by pulling chordae tendinae till the ventricles are relaxed. This helps in preparing the valves for high ventricular pressure

Hence, the given statement is false