Written by Sharanya Bhaskaran

Last updated January 19, 2023 • 5 Revisions

The intertransversarii are a set of deep muscles of the back.

  • Attachments: Originate from the transverse processes of cervical and lumbar vertebrae and insert onto the transverse processes of adjacent vertebrae.
  • Actions:
    • Unilateral – Contribute to lateral flexion of the vertebral column
    • Bilateral – Stabilise the vertebral column.
  • Innervation: Anterior rami of the spinal nerves
  • Blood Supply:
    • Cervical regions are supplied by the occipital, deep cervical, and vertebral arteries.
    • Lumbar regions are supplied by the dorsal branches of lumbar arteries.
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