Levator scapulae muscle
| Levator scapulae muscle |
|---|
|
| Back muscles of man |
| origin |
| Transverse processes of the 1st and 2nd cervical vertebrae , tubercula posteriora of the 3rd and 4th cervical vertebrae |
| approach |
| Angulus superior scapulae and Margo medialis scapulae |
| function |
| Lifts the shoulder blade upwards, swings the inferior angle medially, and tilts the neck to the side |
| Innervation |
| Dorsal nerve scapulae , cervical plexus |
| Spinal segments |
| C4-C6 |
The levator scapulae muscle ( Latin for "shoulder blade lifter") belongs to the secondary (ie not autochthonous ) back muscles.
It arises from the transverse processes ( processus transversi ) of the first and second cervical vertebrae, as well as the tubercula posteriora of the third and fourth cervical vertebrae. They start at the medial edge ( Margo medialis ) and upper shoulder blade angle ( Angulus superior scapulae ) of the shoulder blade . The accessory nerve is located on its lateral edge .
The muscle is innervated by the cervical nerves of the cervical plexus and the dorsal scapular nerve and supplied by the ascending cervical artery , the dorsal artery of the scapula , the vertebral artery and the transverse artery of the colli .
In the lateral cervical triangle ( Regio cervicalis lateralis ), the muscle protrudes under the skin on contraction at the medial edge of the Musculus trapezius . On the front surface of the neck, the muscle is connected to the scalene muscles , with which it can also be fused.
Individual evidence
- ^ Bernhard Tillmann : Atlas of the anatomy . 2nd Edition. Springer-Verlag, 2010, ISBN 978-3-642-02680-5 , p. 567.