Contraction of the papillary muscles would

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The contraction of the papillary muscles occurs during ventricular contraction. Their primary function is to pull on the chordae tendineae, which are attached to the atrioventricular (AV) valves (mitral and tricuspid valves), preventing these valves from inverting or protruding into the atria when the ventricles contract. This action ensures that blood flows in the correct direction, from the ventricles into the outflow tracts (towards the pulmonary artery and aorta), and does not backflow into the atria.

Contraction of the Papillary Muscles Would