Quote (AngelsSonad @ Tue, 24 Mar 2009, 13:44)
lol
who you lol'ing at mister big trapezius muscles

In human anatomy, the trapezius is a large superficial muscle which extends longitudinally from the occipital bone to the lower thoracic vertebrae, and laterally to the spine of the scapula (shoulder blade). The trapezius has three functional regions: The superior region (descending part) supports the weight of the upper limb. The intermediate region (transverse part) retracts the scapulae. The inferior region (ascending part) medially rotates and depresses the scapulae.
It is innervated by the accessory nerve (Cranial Nerve 11) and the ventral rami of third (C3) and fourth (C4) cervical spinal nerves, which also supplies the sternocleidomastoid muscle.
The two trapezius muscles together resemble a trapezium, or diamond-shaped quadrilateral; the four points of the diamond are: the head (at the occipital protuberance), the two shoulders, and the middle of the back (at the spinous process of the twelfth thoracic vertebra, T12).
This post was edited by starlite on Mar 24 2009 11:54am