muscle of pelvis muscle of pelvic diaphragm http://upload.wikimedia.org/wikipedia/commons/6/63/Gray404.png UMLS:C0932441 UBERON:0008612 FMA:64856 A muscular partition formed by the levatores ani and coccygei, with which may be included the parietal pelvic fascia on their upper and lower aspects. It separates the pelvic cavity above from the perineal region below. muscle of pelvic floor pelvic muscles SCTID:367748001 pelvic floor muscles NCIT:C33290 pelvic diaphragm muscle diaphragma pelvis pelvic diaphragm diaphragm of the pelvis Wikipedia:Pelvic_floor