epicardium
/ˌɛpɪˈkɑːdɪəm
/noun [mass noun] Anatomy
A serous membrane that forms the innermost layer of the pericardium, attached to the muscles of the wall of the heart.Reference to the pericardium, epicardium, myocardium, endocardium and valves, chordae, ventricular thicknesses, and aorta and major vessels may be included....
- Affected regions are characterized by a lacelike pattern of adipose infiltration, progressing from epicardium toward the endocardium, and by interposed streams of normal or slightly atrophie myocytes.
- It has been known that muscle fibers in a heart are arranged in such a way that their orientation changes continuously from endocardium to epicardium of the free wall.
Derivatives
epicardial
- Coronary spasm, which results from an increased vasomotor tone of epicardial coronary arteries, can produce myocardial ischemia.
- Based on the CT scans, a scoring system for coronary artery calcification involving the four major epicardial coronary arteries was determined.
- There were multiple irregular, sharply demarcated, rubbery, pale yellow plaques and nodules scattered throughout the pericardium and on the epicardial surface.
Origin
Mid 19th century: from epi- 'above' + Greek kardia 'heart', on the pattern of pericardium.
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