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Trapezius
Topic updated on
10/28/11 7:50am
| Origin |
Medial third of superior nuchal line; external occipital protruberance, nuchal ligament, and spinous processes of C7 - T12 vertebrae
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| Insertion |
Lateral third of clavicle, acromion, and spine of scapula
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| Action |
Elevates, retracts and rotates scapula; superior fibers elevate, middle fibers retract, and inferior fibers depress scapula; superior and inferior fibers act together in superior rotation of scapula
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| Innervation |
Spinal root of accessory nerve (CN XI) (motor) and cervical nerves (C3 and C4) (pain and proprioception) (XI, C3, C4)
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| Arterial Supply |
Transverse certical artery
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| Relevant Approaches |
Posterolateral (Costotransversectomy) Approach to Thoracic Spine |
| Relevant Conditions |
 Lateral Scapular Winging |
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RATE CONTENT
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5.0
t-10001
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AVERAGE 5.0 of 4 RATINGS
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Qbank (0 Questions)
Posts, Cases, Videos & Groups
Textbooks
- Review of Orthopaedics, 5th Edition, Mark D. Miller (editor), Saunders, an imprint
of Elsevier, Philadelphia, Copyright 2008
- First Aid for the Orthopaedic Boards, Robert Laminzak, Mark Albritton, Trevor Pickering
(Editors), McGraw Hill Medical, Copyright 2009
- Orthopaedic Knowledge Update 9, Jeffrey S Fischgrund (Editor). Published by American
Academy of Orthopaedic Surgeons, Rosemont IL. Copyright 2008
- Hoppenfeld SP. Surgical Exposures in Orthopaedics: The Anatomic Approach. Lipponcott,
Williams, and Wilkins, Philadelphia, PA, Copyright 2009
- OITE Questions, American Academy of Orthopaedic Surgeons, Rosemont IL. Copyright
2004-2010
- Frank H. Netter, John A. Craig. Netter's Concise Atlas of Orthopaedic Anatomy, Icon
Learning Systems, Teterboro, NJ, Copyright 2002