Ursprung: Caput sternale: framsidan av sternum. Caput claviculare: mediala 1/3 av nyckelbenet.
Fäste: Lateralsidan av processus mastoideus och laterala 1/3 av linea nuchae superior.
Funktion: Bilateral flexion av huvud. Kontralateral rotation. Inandningsmuskel.
Innervation: N. accessorius (C2-C4).
Uppdaterad: 2019-06-19
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