Tuesday, 7 October 2014

Origin/Insertion of Muscles - Erector Spinae (Semispinalis Capitis)

Semispinalis Capitis
Origin: Transverse processes of C7-T6 and articular processes of C4-C6
Insertion: Between superior and inferior nuchal lines of occipital bone
Action: Bilateral action: extends and hyperextends head and neck; Unilateral action: rotates head and neck to opposite side

Semispinalis Capitis


Transverse Processes

Articular Processes

Occiptial Bone

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