Tags: Anatomical Structure, Muscle.
The rotatores (rotatores spinae) muscle lie beneath the multifidus and is present in all spinal regions but most prominent in the thoracic region; they are eleven in number on either side.Each muscle is small and somewhat quadrilateral in form; it arises from the superior and posterior part of the transverse process and is inserted into the lower border and lateral surface of the lamina of the vertebra above the fibers extending as far as the root of the spinous process.The first is found between the first and second thoracic vertebrae; the last between the eleventh and twelfth.