Rhomboid major muscle

Last revised by Daniel J Bell on 22 Aug 2019

The rhomboid major muscle is a muscle found in the shoulder girdle.

The rhomboid major arises from the four spinous processes of T2-5 and the supraspinous ligaments adjoining them. The insertion of the muscle onto the scapula extends from the inferior angle to the base of the scapular spine.

The rhomboids are innervated by the dorsal scapular nerve from the C5 root of the brachial plexus. This nerve passes through the middle scalene, running deep to levator scapulae which it also supplies. It innervates the rhomboids from their deep surface.

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Cases and figures

  • Figure 1: muscles that position that pectoral girdle
    Drag here to reorder.
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