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Based on the human body, the trapezius is proven to be a sizable superficial muscle that extends longitudinally in the occipital bone until towards the lower thoracic vertebrae and then laterally to the spine from the scapula. Its functions are to move the scapulae and then support the arm. The trapezius has three functional regions plus they are the superior region which is the descending part that props up weight of the arm; the intermediate region or even the transverse part that retracts the scapulae and the last is the inferior region or even the ascending part which medially rotates and depresses the scapulae.