Source:http://linkedlifedata.com/resource/umls/id/C0000739
MSH: Muscles forming the ABDOMINAL WALL including RECTUS ABDOMINIS, external and internal oblique muscles, transversus abdominis, and quadratus abdominis. (from Stedman, 25th ed),UWDA: Muscle (organ) which is a part of the abdomen. Examples: external oblique, rectus abdominis.,FMA: Muscle (organ) which is a part of the abdomen. Examples: external oblique, rectus abdominis.,NCI: Any of the muscles of the abdomen that comprise the abdominal wall; these muscles include the rectus abdominis, the external and internal oblique muscles, the transversus abdominis, and the quadratus abdominis.