Dorsal scapular nerve
Encyclopedia
The dorsal scapular nerve arises from the brachial plexus
, usually from the plexus root (anterior/ventral ramus
) of C5.
It provides motor innervation to the rhomboid muscle
s, which pull the scapula
towards the spine and levator scapulae muscle
, which elevates the scapula.
Brachial plexus
The brachial plexus is a network of nerve fibers, running from the spine, formed by the ventral rami of the lower four cervical and first thoracic nerve roots...
, usually from the plexus root (anterior/ventral ramus
Ventral ramus
The ventral ramus supply the antero-lateral parts of the trunk, and the limbs; they are for the most part larger than the posterior divisions....
) of C5.
It provides motor innervation to the rhomboid muscle
Rhomboid muscle
The rhomboid muscles, often simply called the rhomboids, are rhombus-shaped muscles associated with the scapula and are chiefly responsible for its retraction. There are two rhomboid muscles:* Rhomboid major muscle* Rhomboid minor muscle...
s, which pull the scapula
Scapula
In anatomy, the scapula , omo, or shoulder blade, is the bone that connects the humerus with the clavicle ....
towards the spine and levator scapulae muscle
Levator scapulae muscle
In human anatomy, the levator scapulae is a skeletal muscle situated at the back and side of the neck. As the name suggests, its main function is to lift the scapula.-Origin and insertion:...
, which elevates the scapula.