has muscle origin has muscle origin has muscle insertion has muscle insertion neural spine transverse process of vertebra semispinalis thoracis http://upload.wikimedia.org/wikipedia/commons/6/65/Semispinalis.png The Semispinalis dorsi (or semispinalis thoracis) consists of thin, narrow, fleshy fasciculi, interposed between tendons of considerable length. It arises by a series of small tendons from the transverse processes of the sixth to the tenth thoracic vertebræ, and is inserted, by tendons, into the spinous processes of the upper four thoracic and lower two cervical vertebrae. [WP,unvetted]. NCIT:C53006 UMLS:C0224316 semispinalis dorsi Wikipedia:Semispinalis_dorsi MA:0002374 FMA:22828 musculus semispinalis thoracis EMAPA:37696 UBERON:0001407 semispinalis dorsi muscle musculus semispinalis dorsi SCTID:244868001 semispinalis muscle