What Are the Papillary Muscles?

PM = papillary muscle, papillary muscle, professional medical English abbreviation.

pm

(Papillary muscles)

Right!

PM = papillary muscle, papillary muscle, professional medical English abbreviation.

A tapered flesh column attached to the ventricular wall with the tip protruding into the ventricular cavity. The right ventricle has three (group) papillary muscles, anterior, posterior, and medial (separate). ... the anterior papillary muscles are large and originate from the middle of the anterior wall of the right ventricle; the position and size of the posterior papillary muscles are not constant; the medial papillary muscles originate from the right ventricle of the ventricular septum. Each papillary muscle sends out several chordae to pull two adjacent valves separately. Left ventricular papillary muscles.