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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.’
- ‘An echocardiogram showed that the tip of the pacemaker catheter extended through the right ventricular apical wall of the epicardium.’
- ‘The difference in the spacings in the top epicardium layer and the rest of the heart may indicate that sarcomere lengths in those regions are different.’
Mid 19th century from epi-‘above’ + Greek kardia ‘heart’, on the pattern of pericardium.
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