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The Posterior Scalene is a member of the Scalene Group, which is composed of the:
- Anterior scalene
- Middle scalene
- Posterior scalene
ATTACHMENTS:
- The posterior scalene attaches from the transverse processes of the cervical spine to the second rib.
- The superior attachments are onto the posterior tubercles of the transverse processes of C5-C7.
ACTIONS:
- Laterally flexes the neck at the spinal joints.
- Elevates the second rib at the sternocostal and costospinal joints.
NOTE: The posterior scalene is the most challenging member of the scalene group to palpate and discern.
