Author: Dr Peter de Souza
Last modified: 23 November 2023

The rotares a group of muscles within the transversospinales muscle group. The transversospinales are a group of deep muscles within the back which lie deep to the erector spinae. There are three major muscle subgroups within the transversospinales: semispinalis, multifidus and rotares.

The rotares are the deepest set of muscles within the transversospinales group.


  • rotares lumborum: mamillary processes of lumbar vertebrae
  • rotares thoracis: transverse processes of thoracic vertebrae
  • rotares cervicis: articular processes of cervical vertebrae


  • spinous processes of lumbar, thoracic and cervical vertebrae


  • Weak extensors of the spine
  • Proprioceptive function


  • Dorsal rami of cervical, and thoracic spinal nerves