Trapezius Origin And Insertion

Attachments of trapezius muscle. Learn the anatomy of the trapezius muscle faster with.

Muscles Of The Neck 1

Spinal accessory nerve cranial nerve xi the ventral rami of spinal nerves c2 c3 c4.

Trapezius origin and insertion. Retraction of the scapula. The trapezius inserts on the lateral third of the clavicle as well as the acromion and scapular spine of the scapula. The trapezius muscle also originates from the spinous processes of the c7 through t12 vertebrae.

Descending superior ascending inferior and middle. The trapezius has multiple origin and insertion points it s simply too big not to. Origin and insertion the origin of the trapezius muscle is expansive and is located along the midline of the back.

It attaches superiorly to the medial third of the superior nuchal line of the occipital bone and to the external occipital protuberance. Medial third superior nuchal line ligament nuchae spinousprocesses and supraspinous ligaments to t12. The trapezius has three functional parts.

The transverse part retracts the scapulae and the ascending. A middle region which retracts the scapula. Innervation of the trapezius is derived from the spinal accessory nerve.

Medial superior nuchal line and external protuberance of occipital bone ligamentum nuchae and spinous process of c7 t12. Also like trapezius muscle spasms rapid and effective treatment nerve supply of trapezius accessory nerve cervical spinal nerve c3 and c4. The trapezius is a broad flat superficial muscle extending from the cervical to thoracic region on the posterior aspect of the neck and trunk.

Upper fibers to lateral third of posterior border ofclavicle. The trapezius is a large paired surface muscle that extends longitudinally from the occipital bone to the lower thoracic vertebrae of the spine and laterally to the spine of the scapula. Medial edge of the superior surface of the acromion process of the scapula.

Lower to medial acromion and superior lip of spine of scapulato deltoid tubercle. The c stands for cervical vertebrae which are located in the neck while t stands for thoracic. The superior edge of the scapular spine.

It moves the scapula and supports the arm. Lateral clavicle acromion and spine of scapula. Image from human anatomy atlas.

Moving inferiorly the fibers attach to the spinous processes of the vertebrae. It originates on the occipital bone the ligamentum nuchae and the spinous processes of t01 t12. Muscle anatomy of the middle trapezius.

And a lower part which medially rotates and depresses the scapula. Spinous processes of t1 to t5. The descending part of the trapezius muscle supports the arms.

The muscle is divided into three parts. External occipital protuberance medial superior nuchal line nuchal ligament posterior border of the lateral third of clavicle acromion process and spine of the scapula. An upper part which supports the weight of the arm.

Trapezius