Rhomboideus Minor

Muscle Origin

C-7 through T-1 to vertebral border of scapula at the level of the spine of the scapula.

The rhomboid minor arises from the inferior border of the nuchal ligament, from the spinous processes of the seventh cervical and first thoracic vertebrae, and from the intervening supraspinous ligaments. Wiki

Insertion

Medial border of scapula, superior to the insertion of rhomboid major muscle.

Action

Adducts the scapula.anatomy-model-muscles-back-039-edited 3

Together with the rhomboid major, the rhomboid minor retracts the scapula when trapezius is contracted. Acting as an antagonist to the trapezius, the rhomboid major and minor elevate the medial border of the scapula medially and upward, working in tandem with the levator scapulae muscle to rotate the scapulae downward. While other shoulder muscles are active, the rhomboid major and minor stabilize the scapula. Wiki

Innervation – Nerve control

Dorsal scapular nerve.

The nerve supply comes from the dorsal scapular nerve, with most of its fibers derived from the C5 nerve root and only minor contribution from C4 or C6. The rhomboid minor gets its arterial blood supply from the dorsal scapular artery. Wiki

Artery

Deep branch of transverse cervical artery.

The transverse cervical artery is one of three blood vessels that extend from the thyrocervical trunk, a larger artery located within the neck.

Antagonist muscles

Serratus anterior.

The serratus anterior muscle is a fan-shaped muscle. It is found at the lateral wall of the thorax, deep under the scapula and the pectoral muscles..

Pictures of muscles

 

Trigger Point Referrals

 

Stretching description

 

Exercises

 

Injuries

 

Treatment

 

Additional Resources
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