Musculi rotatores
| Musculi rotatores |
|---|
|
| View of the rotators from behind |
| origin |
| Transverse process |
| approach |
| Spinous process of the previous or previous vertebra |
| function |
| Stabilization of the spine |
| Innervation |
| Rami dorsales of the spinal nerves |
The rotatores muscles ( lat. For "rotators") are a group of short, one to two spinal segments extending skeletal muscles . Within the local back muscles, they belong to the so-called transversospinal system ( Systema transversospinale ). Like all muscles in this system, they pull higher vertebrae from the transverse processes to the spinous processes . The rotator muscles lie under the multifidi muscles and are steeper than the latter due to the lower number of vertebrae skipped. They serve to stabilize the spine.
The rotator muscles are further subdivided according to two aspects:
- According to the number of vertebrae skipped, they are divided into
- Musculi rotatores breves (a vertebra) and
- Musculi rotatores longi (two vertebrae, they lie more superficially than the short rotator muscles).
- A distinction is made according to the localization on the spine
- the rotatores lumborum muscles ( lumbar spine ),
- the musculi rotatores thoracis ( thoracic spine ) and
- the rotatores cervicis muscles ( cervical spine ).
In the lumbar and cervical spine, the Mm. rotatores very weak and can hardly be removed from the Mm. to separate multifidi.
Individual evidence
- ↑ a b G. Arnold, HM Beier, M. Herrmann, H.-J. Kretschmann, W. Kühnel, H. Rollhäuser: Textbook of the entire human anatomy: Cytology, histology, history of development, macroscopic and microscopic anatomy . 2nd Edition. Springer, Berlin 2013, ISBN 978-3-662-12239-6 , pp. 197 .
- ^ A b Gregory D. Cramer, Susan A. Darby: Clinical Anatomy of the Spine, Spinal Cord, and ANS . 3. Edition. Elsevier Health Sciences, 2017, ISBN 978-0-323-08231-0 , pp. 114 .