The cardiac skeleton is made of dense connective tissue and this gives structure to the heart and forms the atrioventricular septum which separates the right from the left heart, and the fibrous rings which serve as bases for the four heart valves.
The cardiac skeleton is made of dense connective tissue. This gives structure to the heart. This forms the atrioventricular septum. This forms the fibrous rings. These fibrous rings serve as bases for the four heart valves. This atrioventricular septum separates the right from the left heart.