Rhomboid muscle

Rhomboid muscle
Muscles connecting the upper extremity to the vertebral column.
Details
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
Actions	Pulls scapulae medially, rotates scapulae, Holds scapluae into thorax wall
Latin	musculi rhomboidei
Anatomical terms of muscle []

The rhomboid muscles (/ˈrɒmbɔɪd/), often simply called the rhomboids, are rhombus-shaped muscles associated with the scapula and are chiefly responsible for its retraction. They are innervated by the dorsal scapular nerve. There are two rhomboid muscles on each side of the upper back:

Rhomboid muscles.

Left scapula. Posterior surface.

Full back muscle flex