Rhomboids

Joe Muscolino

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Rhomboid minor and major. The levator scapulae has been ghosted in.

There are two Rhomboid Muscles: Rhomboid Minor and Rhomboid Major.

 

ATTACHMENTS:

  • Spinous processes of C7-T5 to the medial border of the scapula from the root of the spine down to the inferior angle.
    • The rhomboid minor attaches proximally onto the spinous processes of C7-T1.
    • The rhomboid major attaches proximally onto the spinous processes of C2-T5.

 

ACTIONS:

  • Retracts the scapula at the scapulocostal joint.
  • Elevates the scapula at the scapulocostal joint.
  • Downwardly rotates the scapula at the scapulocostal joint.

 

NOTES:

  1. Weak (overly inhibited) rhomboids contribute to the postural distortion pattern of rounded shoulders, which is part of the larger postural dysfunctional pattern, upper crossed syndrome.
  2. The rhomboids blend into the serratus anterior as part of the myofascial meridian (anatomy train) spiral line.
  3. The rhomboids are nicknamed the Christmas Tree muscles because when viewed bilaterally, along with the spine, they create the shape of a Christmas tree.