trapezius muscle
A large superficial muscle that extends longitudinally from the occipital bone to the lower thoracic vertebrae and laterally to the spine of the scapula (shoulder blade). Its functions are to move the scapulae and support the arm. The trapezius has three functional regions: the superior region (descending part), which supports the weight of the arm; the intermediate region (transverse part), which retracts the scapulae; and the inferior region (ascending part), which medially rotates and depresses the scapulae. [WP,unvetted]. [ http://en.wikipedia.org/wiki/Trapezius_muscle ]
Term info
trapezius muscle
- trapezius
uberon_slim
http://upload.wikimedia.org/wikipedia/commons/6/60/Trapezius.png
uberon
spinotrapezius, musculus trapezius
The sternomastoid and the three parts of the trapezius are branchiomeric muscles that have secondarily acquired an attachment to the pectoral girdle. They evolved from the fish cucullaris.[well established][VHOG]
UBERON:0002380
Term relations
- muscle of shoulder
- neural crest-derived structure
- mesoderm-derived structure
- has_muscle_origin some neural spine
- has muscle insertion some lateral border of scapula
- has muscle insertion some acromion
- develops from some trapezius pre-muscle mass
- has_muscle_origin some nuchal ligament
- has_muscle_antagonist some latissimus dorsi muscle
- has_muscle_antagonist some serratus ventralis