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epicardium

Syllabification: ep·i·car·di·um
Pronunciation: /ˌepəˈkärdēəm
 
/

Definition of epicardium in English:

noun

Anatomy
A serous membrane that forms the innermost layer of the pericardium and the outer surface of the heart.
Example sentences
  • 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.

Origin

mid 19th century: from epi- 'above' + Greek kardia 'heart', on the pattern of pericardium.

Derivatives

epicardial

1
adjective
Example sentences
  • 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.

Definition of epicardium in:

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