PATHOLOGY

Detailed explanation-1: -The skeleton performs several functions: It serves as a point of attachment for the heart valves. The cardiac muscle bundles insert onto the fibrous skeleton. It prevents the valves from overstretching as blood passes through them.

Detailed explanation-2: -The valves prevent the backward flow of blood. These valves are actual flaps that are located on each end of the two ventricles (lower chambers of the heart). They act as one-way inlets of blood on one side of a ventricle and one-way outlets of blood on the other side of a ventricle.

Detailed explanation-3: -The fibrous skeleton of the heart anchors the valves of the heart, and gives attachment to the myocardium above and below. It consists of four fibrous rings, each surrounding one of the valves (aortic, pulmonary, bicuspid and tricuspid), plus the membranous part of the interventricular septum.