Anatomy

Levator Scapulae: Functional Anatomy Guide

The levator scapulae (L. levator, elevator ; scapulae, shoulder blades.) is a strap-like muscle in neck and shoulder region. It acts on the scapula and cervical spine, and as its name reveals, its most prominent role is scapular elevation. Classified as a superficial posterior axioappendicular (extrinsic shoulder) muscle, the levator scapulae is situated deep to …

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Erector Spinae: Functional Anatomy Guide

The erector spinae (erigere, to erect ; spina, spine.) consists of three long, thin muscle groups running vertically up each side of the vertebral column: the iliocostalis, longissimus and spinalis. These muscles act on different segments of the vertebral column (i.e. lumbar, thoracic, cervical). Collectively, they are the prime movers in spinal extension and spinal …

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