Trapezius

Origin: External occipital protuberance, superior nuchal line of skull Nuchal ligament from spines of seventh cervical and all thoracic verebrae

Insertion: Lateral third of the Clavicle, acromion and spine of the Scapula

Function: Adducts scapula, tilts chin, draws back acromion, rotates scapula at the Scapulothoracic Joint

Nerve: Spinal Accessory Nerve

Artery: Descending scapular artery

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Links to this page: Alphabetical Muscle Index | C3 Root Shared muscle innervation | C3, C4 roots | C4 Root Shared Muscle Innervation | Clavicle | Descending scapular (transverse cervical) artery | Muscles connecting arm to spine | Muscles which Depress the scapula | Muscles which Elevate the scapula | Muscles which produce scapular adduction (retraction) | Muscles which produce Upward Rotation of scapula | Nerve route to Trapezius | Scapula | Spinal Accessory Nerve | Trapezius Tendons |