Origin The muscle attaches to the medial third of superior nuchal line; external occipital protruberance, nuchal ligament, and spinous processes of C7 - T12 vertebrae[2]. Insertion The muscle inserts on the lateral third of clavicle, acromion, and spine of scapula[2].

What are the rhomboids responsible for?

Under innervation from the dorsal scapular nerve, the rhomboids primarily retract the scapula superomedially and rotate the glenoid cavity. ... Therefore, the rhomboids are important to stabilize the scapula into position and reinforce the shoulder.

Is rhomboid muscle visible?

Muscles connecting the upper extremity to the vertebral column. (Rhomboideus major visible at upper center right, near shoulder.)