| Rhomboid muscle | |
|---|---|
| Muscles connecting the upper extremity to the vertebral column. | |
| Latin | musculus rhomboideus |
| Origin | nuchal ligaments, spinous processes of the C7 to T5 vertebrae |
| Insertion | medial border of the scapula |
| 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 |
The rhomboid muscles, often simply called the rhomboids, are rhombus-shaped muscles associated with the scapula and are chiefly responsible for its retraction. There are two rhomboid muscles: