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see heartheart,
muscular organ that pumps blood to all parts of the body. The rhythmic beating of the heart is a ceaseless activity, lasting from before birth to the end of life. Anatomy and Function

The human heart is a pear-shaped structure about the size of a fist.
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the closed, saclike structure surrounding the heart in vertebrate animals and in man. The pericardium is an isolated part of the secondary body cavity, the coelom. It consists of two layers: an external, parietal layer—the pericardium proper—and an internal, visceral layer—the epicardium. The pericardium proper consists, in turn, of an internal, serous layer and an external, fibrous layer. The epicardium, being an external membrane of the heart, directly covers and is fused to the heart muscle (myocardium). In the region where large blood vessels enter and leave the heart, the epicardium is turned back and is continuous with the pericardium proper. Between the pericardium layers is a slitlike cavity containing a small quantity of transparent pale-yellow serous fluid. The pericardium contains blood vessels, lymphatics, and numerous nerve endings and is surrounded by areolar connective tissue. It has many receptors, whose stimulation causes hemodynamic and respiratory changes.


The membranous sac that envelops the heart; it contains 5-20 grams of clear serous fluid.


the membranous sac enclosing the heart
References in periodicals archive ?
Although cardiac surgeons understand the benefit of closing the pericardium to avoid injury of the heart when they are required to perform second operations, which currently represents one in five cardiac surgical procedures, many surgeons are hesitant to close the pericardium for fear that immediate postoperative cardiac bleeding might compress the heart (cardiac tamponade).
5 percent concentration of solution the pericardium treated with GA was comparatively stiffer and tougher in comparison to those treated with other cross-linking agents.
The use of CT to evaluate disease of the heart and the pericardium is becoming more commonplace.
medical manufacturer, but in late December, it told hospitals to refrain from using the pericardiums.
Cardiac MRI showed RV compression by a large clot, severely depressed (14%) LV function, moderately depressed (38%) RV with obliteration of the RV cavity, and a large thrombus contained within the pericardium compressing the RV from the mid RV to the apex.
Pleomorphic rhabdomyosarcoma involving the pericardium and lung pleura
The visceral pericardium was recognized as the source for the
Four days later, because of free air in the pericardium and peritoneum (the patient was on high ventilatory pressure), drainage tubes were placed, resulting in a temporary improvement of pulmonary gas exchange.
Acupressure points worthwhile massaging are Liver 3 (between the big and second toe), and Pericardium 6 (two finger breadths from the wrist crease on the palm side in the middle of the arm).
The valve's functional component is made of bovine pericardium and is mounted on a super-elastic alloy frame.
CryoLife also distributes PhotoFix(TM) Decellularized Bovine Pericardium, a proven, clinically effective tissue substitute that has undergone a dye-mediated photo-oxidation fixation process, is biocompatible without toxicity, and is derived from bovine pericardium, a material known for reliable consistency and strength with handling characteristics similar to autologous pericardium.
Contract notice: Delivery kits to drain the pericardium and diagnostic catheters 4-point with connectors - 2 packages.