Anterior Scalene

Joe Muscolino

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The anterior scalene of the scalene group of muscles.

The Anterior Scalene is a member of the Scalene Group, which is composed of the:

  • Anterior scalene
  • Middle scalene
  • Posterior scalene



  • The anterior scalene attaches from the transverse processes of the cervical spine to the first rib.
    • The superior attachments are onto the anterior tubercles of the transverse processes of C3-C6.



  • Flexes the neck at the spinal joints.
  • Laterally flexes the neck at the spinal joints.
  • Contralaterally rotates the neck at the spinal joints.
  • Elevates the first rib at the sternocostal and costospinal joints.


NOTE: A tight anterior scalene can be involved with a neurovascular compression syndrome (of the brachial plexus of nerves and the subclavian artery) known as anterior scalene syndrome (a type of thoracic outlet syndrome).