Source:http://linkedlifedata.com/resource/umls/id/C1179477
FMA: Organismal continuant entity which is enclosed by the bona fide boundary of an organism or is an attribute of its structural organization. Examples: cell, heart, head, peritoneal cavity, apex of lung, anatomical term, sagittal plane.,UWDA: Biological entity, which forms the whole or a part of, or is an attribute of, the structural organization of a biological organism. Examples: cell, heart, head, peritoneal cavity, apex of lung, anatomical term, sagittal plane.