Which of the following statements is correct concerning the cardiac skeleton?
A) it is composed of fibrocartilage
B) it is composed of elastic cartilage
C) it forms the interatrial septum
D) it forms an electrical discontinuity between the two atria
E) it forms an electrical discontinuity between the atria and ventricles

Question

Quizplus · Accepted Answer

The cardiac skeleton is composed of fibrous connective tissue, not cartilage. It does not form the interatrial septum, but rather forms an electrical discontinuity between the atria and ventricles through the fibrous rings surrounding the AV valves. Therefore, the correct statement is that the cardiac skeleton forms an electrical discontinuity between the atria and ventricles.

Which of the Following Statements Is Correct Concerning the Cardiac