The rotatores are a set of deep muscles of the back. They are part of the transversospinales muscle group, and are most prominent in the thoracic region.
- Attachments: Originates from the vertebral transverse processes. The fibres ascend and attach to the lamina and spinous processes of the vertebrae above.
- Actions: Contributes to extension and rotation of the vertebral column. Also stabilises the vertebrae and had a proprioceptive function.
- Innervation: Posterior rami of the spinal nerves
- Blood Supply: Dorsal branches of posterior intercostal and lumbar arteries.
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Fig 1
The rotatores muscle group of the back.