Transversospinales
The transversospinales are a group of muscles of the human back. Their combined action is rotation and extension of the vertebral column. These muscles are small and have a poor mechanical advantage for contributing to motion. They include:
- the three semispinalis muscles, spanning 4-6 vertebral segments
- semispinalis thoracis
- semispinalis cervicis
- semispinalis capitis
- multifidus, spanning 2-4 vertebral segments
- rotatores, spanning 1-2 vertebral segments
- rotatores cervicis
- rotatores thoracis
- rotatores lumborum
| Transversospinales | |
|---|---|
 Section of the neck at about the level of the sixth cervical vertebra. Showing the arrangement of the fascia coli. | |
 Deep muscles of the back. | |
| Details | |
| Origin | transverse process |
| Insertion | spinous process |
| Nerve | Posterior ramus of spinal nerve |
| Actions | Extend vertebral column (bilateral contraction); rotate vertebral column (unilateral contraction) Antagonist = |
| Identifiers | |
| Latin | musculi transversospinales |
| TA98 | A04.3.02.201 |
| TA2 | 2275 |
| FMA | 71304 |
| Anatomical terms of muscle | |
External links
- Musculoskeletal Interventions: Techniques for Therapeutic exercise. Authors: Michael L. Voight, Barabara J. Hoogenboom, William E. Prentice.
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