The skeleton of the heart consists of
A) a bone within the myocardium.
B) a bone in the interatrial septum.
C) a bone in the interventricular septum.
D) fibrous connective tissue that surrounds the atrioventricular orifices.
E) fibrous connective tissue in the aorta.

Question

Quizplus · Accepted Answer

The skeleton of the heart is made up of fibrous connective tissue that surrounds the atrioventricular orifices, separating the atria from the ventricles. This includes the fibrous rings surrounding the tricuspid and mitral valves, as well as the fibrous trigones located between the atria and ventricles. There are no bones within the myocardium or atrial or ventricular septa, and there is no fibrous connective tissue in the aorta.

The Skeleton of the Heart Consists of