Rotatores - Podcast Version 0:00 / 0:00 1x 0.25x 0.5x 0.75x 1x 1.25x 1.5x 1.75x 2x 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. Adobe Stock, Licensed to TeachMeSeries Ltd Fig 1The rotatores muscle group of the back. Pro Feature - 3D Model You've Discovered a Pro Feature Access our 3D Model Library Explore, cut, dissect, annotate and manipulate our 3D models to visualise anatomy in a dynamic, interactive way. Learn More Frequent questions What are the rotatores muscles? The rotatores are deep back muscles that belong to the transversospinales group, primarily found in the thoracic region. They play a role in stabilising the vertebral column and facilitating movement. Where do the rotatores muscles originate and insert? The rotatores originate from the transverse processes of the vertebrae and ascend to attach to the lamina and spinous processes of the vertebrae above. This arrangement enables them to effectively contribute to spinal movements. What actions do the rotatores muscles perform? The rotatores assist in the extension and rotation of the vertebral column while also providing stability to the spine. Their proprioceptive function helps in maintaining posture and balance. How are the rotatores muscles innervated? The rotatores receive their innervation from the posterior rami of the spinal nerves. This innervation is crucial for their motor function and coordination during movement. What is the blood supply to the rotatores muscles? The blood supply to the rotatores comes from the dorsal branches of the posterior intercostal and lumbar arteries. This vascular support is essential for their metabolic needs and overall function. Rate This Article