develops from develops from Homo sapiens axial muscle transverospinalis pre-muscle mass transversospinales muscle http://upload.wikimedia.org/wikipedia/commons/7/7f/Gray384.png SCTID:244866002 transversospinal group of muscles transversospinales muscle group musculi transversospinales Wikipedia:Transversospinales_muscles EHDAA2:0002075 deep dorsal muscles FMA:71304 UBERON:0010990 transverospinalis transversospinales The transversospinal muscles are a group of muscles of the human back. Their combined action is rotation and extension of the vertebral column. They include: semispinalis, spanning 4-6 vertebral segments semispinalis dorsi semispinalis cervicis semispinalis capitis multifidus, spanning 2-4 vertebral segments rotatores, spanning 1-2 vertebral segments rotatores cervicis rotatores thoracis rotatores lumborum. EHDAA:9465