Select the correct statement about the structure of the heart wall.

Question

Quizplus · Accepted Answer

The myocardium is the middle layer of the heart wall and is composed of cardiac muscle cells that contract to pump blood through the heart. The endomysium is the connective tissue layer that surrounds individual muscle cells, not the heart chambers. The fibrous skeleton provides structural support for the heart and serves as an attachment site for the heart valves and cardiac muscle fibers, but it does not form the bulk of the heart. While connective tissue in the heart wall does play a role in the conduction of the action potential, it is not the primary means of conduction.

Select the Correct Statement About the Structure of the Heart