We are 1.2 million neighbors, friends, and community leaders who come together to create positive, lasting change in our communities and around the world. Our differing occupations, cultures, and countries give us a unique perspective. Our shared passion for service helps us accomplish the remarkable.
Fibrous Pericardium. Continuous with the central tendon of the diaphragm, the fibrous pericardium is made of tough connective tissue and is relatively non-distensible. This rigidity prevents rapid overfilling of the heart, but can have several serious clinical consequences (see cardiac tamponade).
The endocardium is a thin layer of endothelium that lines the chambers of the heart and the valves. The pericardium (around the heart) is a triple-layered fluid-filled sac that surrounds the heart. The outer layer of this sac is the fibrous pericardium . It is a strong layer of dense connective tissue.