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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 serous membrane (covering membrane) which, in humans and other vertebrates, forms the wall of the pericardial cavity and holds the heart in place. The pericardium is made of two thin layers of tissue. Immediately surrounding the heart, and attached to it, is the visceral pericardium, or epicardium.The heart can slide easily on the visceral pericardium, thus allowing it to beat freely. The visceral pericardium has an external layer of flat mesothelial cells, which lies on a stroma of fibrocollagenous support tissue.ow, if you pretend that your fist is your heart, the two layers of the football bladder will be like the two layers of the pericardium which surround it. At the top, your wrist will represent the large blood vessels which carry blood to and from the heart.