Papillary musclesMultiple Choiceare attached to the semilunar valves via the chordae tendineae.prevent the backflow of blood into the atria during ventricular systole.prevent the backflow of blood into the ventricles from the aorta.prevent the valves from closing during ventricular diastole.contract when the ventricles relax.

What is the function of the chordae tendineae and the papillary muscles?Multiple choice question.to pump blood from the ventricles into the arteries leaving the heartto increase surface area for the absorption of oxygen and nutrients from the blood into the heart wallto open the AV valves when the pressure of the blood in the atria is great enoughto prevent the AV valves from inverting into the atria due to the pressure of blood

Papillary muscles are attached to the cusps of valves by thin, strong, connective tissue strings calledMultiple Choicethe chordae tendineae.the interventricular septa.the interventricular sulcus.the auricles.the coronary sinus.

What is the function of the papillary muscles of the heart?Multiple ChoiceTo help conduct cardiac impulses throughout the ventricular myocardiumTo hold the semilunar valves closed during ventricular diastoleTo prevent atrioventricular valves from prolapsingTo assist in the ejection of blood

What prevents the atrioventricular valves from inverting into the atrium against the pressure of blood from the ventricles?Multiple choice question.chordae tendineae and papillary musclesthe shape of the valvesblood pressure in the atria

The valve that  prevents backflow of blood from right ventricle to right auricle.