transversospinalis muscle

trans·ver·so·spi·nal·is mus·cle

(trans-vĕr'sō-spī-nā'lis mŭs'ĕl)
The group of muscles that originate from transverse processes of vertebrae and pass to spinous processes of higher vertebrae; they act as rotators and include the semispinalis (capitis, cervicis, thoracis), multifidus, and rotatores (cervicis, thoracis, lumborum) muscles. All are innervated by dorsal primary rami of spinal nerves.
Synonym(s): musculus transversospinalis [TA] , transversospinal muscle.