Word: pericardiac
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...sacks become inflamed, from pneumonia, rheumatic fever and other infectious diseases. The sacks may stick together. Or the outer sack may adhere to the inside of the chest wall or to the upper side of the diaphragm. Or fibrous bands may develop and constrict the heart. During early pericardiac inflammation, Dr. Lewis Atterbury Conner of Cornell University pumps a little nitrogen-rich air between the two sacks. The gas holds the tissues apart until the inflammation goes away. Inflammation causes an exudation from the sacks. Doctors have merry names to describe the appearances of the exuding membranes-bread & butter pericardium...
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