What is the function of papillary muscles?

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(C) Papillary muscles are specialized muscles located in the ventricles of the heart. They are attached to the atrioventricular valves (tricuspid and

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Opening and closing of heart valves

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(C) Papillary muscles are specialized muscles located in the ventricles of the heart. They are attached to the atrioventricular valves (tricuspid and mitral valves) via fibrous cords known as chordae tendineae. Their primary function is to prevent the inversion or prolapse of these valves into the atria during ventricular systole (contraction). By contracting,they pull on the chordae tendineae,ensuring the valves remain tightly closed and preventing the backflow of blood.

Column-$I$	Column-$II$
$P$. Interatrial septum	$I$. Thick fibrous tissue
$Q$. Interventricular septum	$II$. Thin wall
$R$. Atrioventricular septum	$III$. Thick wall

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