Rhomboideus Major

Muscle Origin

T-2 through T-5 to vertebral border of scapula below the spine of the scapula.

Spinous processes of the T2 to T5 vertebrae.anatomy-model-muscles-back-039-edited-2

Insertion

Medial border of the scapula, inferior to the insertion of rhomboid minor muscle.

Vertebral border of the scapula, from inferior to the scapular spine to the inferior angle.

Action

Adducts the scapula.

Retracts the scapula and rotates it to depress the glenoid cavity. It also fixes the scapula to the thoracic wall.

Innervation – Nerve control

Dorsal scapular nerve (C4 and C5).

The rhomboid major, like the rhomboid minor, is innervated by the ventral primary ramus via the dorsal scapular nerve (C5).

Artery

Dorsal scapular artery.

The dorsal scapular artery, also known as the descending scapular artery, is a blood vessel which supplies the levator scapulae, rhomboids, and trapezius,

Antagonist muscles

Serratus anterior muscle.

The serratus anterior is a muscle that starts on the surface of the 1st to 8th ribs at the side of the chest and inserts along the entire anterior length of the medial border of the scapula.

Pictures of muscles

 

Trigger Point Referrals

 

Stretching description

 

Exercises

 

Injuries

 

Treatment

 

Additional Resources
Wiki
The Wellness Digest

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