14.3 extrinsic acting on cervical spine

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itzlinds
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264934
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14.3 extrinsic acting on cervical spine
Updated:
2014-03-03 20:02:44
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14 extrinsic muscles acting cervical spine
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14.3 extrinsic muscles acting on the cervical spine
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14.3 extrinsic muscles acting on the cervical spine
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  1. what is the origin of the trapezius:
    • occipital protuberance
    • nuchal line of the occipital bone
    • upper portion of the ligamentum nuchae
  2. what is the insertion of the trapezius (upper one third):
    • lateral 1/3 of the clavicle
    • acromion process
  3. what are the 5 actions of the trapezius:
    • cervical extension
    • cervical side bending
    • elevation of scapula
    • upward rotation of scapula
    • rotation of the cervical spine to the opposite side
  4. what is the origin of the levator scapulae:
    • spinous process of C7
    • transverse processes of cervical vertebrae C1 thru C4
  5. what is the insertion of the levator scapulae:
    superior medial border of scapula
  6. what is the 3 action of the levator scapulae:
    • elevation of the scapula
    • downward rotation of the scapula
    • extension of cervical spine
  7. what is the origin of the sternoclediomastiod:
    • medial clavicular head
    • superior sternum
  8. what is the insertion of the sternocleidomastoid:
    mastoid process of the skull
  9. what are the 4 actions of the sternocleidomastoid:
    • flexion of the cervical spine
    • rotation of the skull to the opposite side
    • lateral bending of the cervical spine
    • elevation of the clavicle an sternum
  10. what is the origin of the scalene, anterior:
    anterior portion of the transverse processes of C3 to C6
  11. what is the insertion scalene, anterior:
    sternal attachment of the 1st rib
  12. what are the 2 actions of the scalene, anterior, middle, posterior:
    • lateral bending of the cervical spine
    • elevation of the rib cage
  13. what is the origin of the scalene, middle:
    anterior portion of the transverse processes of C2-C7

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