Rhomboid major and minor

Origin	Nuchal ligaments, spinous processes of the C7 to T5 vertebrae
Insertion	Medial border of the scapula
Action(s)	Retracts the scapula and rotates it to depress the glenoid cavity. It also fixes the scapula to the thoracic wall.
Nerve Supply	Dorsal scapular nerve (C4 and C5)
Arterial Supply	Dorsal scapular artery
Physical Exam
Clinical Importance
Disease States
Discussion	Structure (Rhomboid major): The rhomboid major arises from the spinous processes of the thoracic vertebrae T2 to T5 as well as the supraspinous ligament. It inserts on the medial border of the scapula, from about the level of the scapular spine to the scapula's inferior angle. The rhomboid major is considered a superficial back muscle. It is deep to the trapezius, and is located directly inferior to the rhomboid minor. 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.