Trapezius

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Author:
jcandyj_80alba
ID:
149624
Filename:
Trapezius
Updated:
2012-04-23 16:32:17
Tags:
Trapezius
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Description:
Trapezius
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  1. Action of upper fibers of trapezius
    • bilaterally extend the head and neck
    • unilaterally laterally flex the head and neck to the same side
    • unilaterally rotate the head and neck to the opposite side
    • elevate the scapula
    • upwardly rotate the scapula
  2. action of middle fibers of trapezius
    • adduct the scapula
    • stabilize the scapula
  3. action of lower fibers
    • depress the scapula
    • upwardly rotate the scapula
  4. Origin
    • external occipital protuberance
    • medial portion of superior nuchal line of the occiput
    • ligamentum nuchae
    • spinous processes of c7-t12
  5. insertion
    • lateral 1/3 of clavicle
    • acomion
    • spine of scapula

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