has muscle origin has muscle origin muscle of pelvis levator ani muscle http://upload.wikimedia.org/wikipedia/commons/6/63/Gray404.png NCIT:C32984 MA:0002332 FMA:19087 the levator ani muscle acts to lower the tail, in animals that have one SCTID:181753008 musculus levator ani UMLS:C0224384 levator ani Wikipedia:Levator_ani UBERON:0001326 The Levator ani is a broad, thin muscle, situated on the side of the pelvis. It is attached to the inner surface of the side of the lesser pelvis, and unites with its fellow of the opposite side to form the greater part of the floor of the pelvic cavity. It supports the viscera in pelvic cavity, and surrounds the various structures which pass through it. In combination with the Coccygeus muscle, it forms the pelvic diaphragm. [WP,unvetted]. EMAPA:19165 pelvic region of trunk