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pericardium, pl. pericardia (per-i-kar´de-um, -a) [NA]
The fibroserous membrane, consisting of mesothelium and submesothelial connective tissue, covering the heart and beginning of the great vessels. It is a closed sac having two layers: the visceral layer (epicardium), immediately surrounding the heart, and the outer parietal layer, forming the sac, composed of strong fibrous tissue, the fibrous p. fibrosum, lined with serous membrane, serous pericardium. The phrenic nerve divides the p. into antephrenic and retrophrenic portions; the pulmonary hilum divides both of these portions into suprahilar, hilar, and infrahilar portions.capsula cordis, heart sac, membrana cordis, theca cordis; [L. fr. G. pericardion, the membrane around the heart]
adherent p. adhesive pericarditis
bread-and-butter p. fibrinous pericarditis in which the visceral and parietal surfaces of the p. resemble those of two pieces of buttered bread that have been pressed together and then pulled apart, when they are separated at surgery or necropsy.
p. fibro´sum [NA] fibrous p
fibrous p. See pericardium.p. fibrosum [NA];
hydrops pericardii (hI´drops per-i-kar´de-I) an obsolete term for pericardial effusion.
periaccretio pericardii (per´i-a-kre´she-o per-i-kar´de-I) adhesion of the p. or part of it to the cardiac surface due to antecedent inflammation.
p. sero´sum [NA] serous p.
serous p. See pericardium.
shaggy p. fibrinous pericarditis
visceral p. the layer of the pericardial sac on the epicardial surface of the heart. It is composed mainly of a single layer of mesothelium.
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