Rhomboid major muscle
| Rhomboid major | |
|---|---|
Muscles connecting the upper extremity to the vertebral column. Rhomboid major indicated in red. | |
| Details | |
| Origin | Spinous processes of the T2 to T5 vertebrae |
| Insertion | Medial border of the scapula, inferior to the insertion of rhomboid minor muscle |
| Artery | Dorsal scapular artery |
| Nerve | Dorsal scapular nerve (C5) |
| Actions | Retracts the scapula and rotates it to depress the glenoid cavity. It also fixes the scapula to the thoracic wall. |
| Antagonist | Serratus anterior muscle |
| Identifiers | |
| Latin | musculus rhomboideus major |
| TA98 | A04.3.01.007 |
| TA2 | 2232 |
| FMA | 13379 |
| Anatomical terms of muscle | |
The rhomboid major is a skeletal muscle of the back that connects the scapula with the vertebrae of the spinal column.[1] It originates from the spinous processes of the thoracic vertebrae T2–T5 and supraspinous ligament; it inserts onto the lower portion of the medial border of the scapula.[2] It acts together with the rhomboid minor to keep the scapula pressed against thoracic wall and to retract the scapula toward the vertebral column.[1]
As the word rhomboid suggests, the rhomboid major is diamond-shaped. The major in its name indicates that it is the larger of the two rhomboids.
- ^ a b Platzer 2004, p. 144
- ^ Cite error: The named reference
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