The skeleton of the heart consists of
A)bone within the myocardium.
B)bone within the interatrial septum.
C)fibrous connective tissue in the endocardium.
D)fibrous connective tissue encircling the atrioventricular orifices.

Question

Quizplus · Accepted Answer

The fibrous connective tissue encircles the atrioventricular orifices and forms the skeleton of the heart. This helps to anchor the heart valves and provides a framework for the myocardium to contract against. There is no bone within the myocardium or interatrial septum, and there is not typically fibrous connective tissue within the endocardium of a healthy heart.

The Skeleton of the Heart Consists of