NCIt definition : Any one of the group of small muscles located in the ventricles of the heart that
insert onto the ventricular wall and are continuous at the opposite end with the chordae
tendineae, which insert onto the free edge of the atrioventricular valves, functioning
to keep the valves closed during ventricular systole.;
Alternative definition : CDISC: Any one of the group of small muscles in the heart ventricles, in general extending
from the ventricular wall to the free edge of the atrioventricular valves; primary
function is to keep the valves closed during ventricular systole.;