Rhomboid muscle
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Rhomboid muscle | |
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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 (C4 and C5) |
Action: | 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:
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