part_of part of part of develops_from develops from develops from attached to attached to multi-tissue structure heart epicardium uberon heart epicardium ZFA:0005057 visceral serous pericardium proper TAO:0005057 External layer of the heart.[TAO] visceral serous pericardium of heart EHDAA2:0002202 The inner layer of the pericardium that is in contact with the surface of the heart.[AAO] VHOG:0000119 A region of the serous membrane that forms the innermost layer of the pericardium and the outer surface of the heart. TODO - check links with UBERON:0002425 visceral serous pericardium. develops from proepicardium. WP:Epicardium -- When considered as a part of the pericardium, it is the inner layer, or visceral pericardium, continuous with the serous layer. The visceral pericardium apparently produces the pericardial fluid, which lubricates motion between the inner and outer layers of the pericardium. During ventricular contraction, the wave of depolarization moves from endocardial to epicardial surface. [Wikipedia:Epicardium] UMLS:C0225968 galen:Epicardium AAO:0010409 pericardium visceral mesothelium UBERON:0002348 Wikipedia:Epicardium FMA:9461 XAO:0000316 NCIT:C13164 myocardium visceral serous pericardium proepicardium