Muscles of the Upper Limb
Trapezius: Origin, Insertion, Action & Nerve Supply to Trapezius
The trapezius muscle arise from the medial third of the superior nuchal line to the spine of the seventh cervical vertebrae. It also arises from the ligamentum nuchae between the external occipital protuberance and the spine of the seventh cervical vertebra. Below this, the origin extends along the spinous process and the supraspinous process of all the 12 thoracic vertebrae.
