14.3 extrinsic acting on cervical spine

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what is the origin of the trapezius:
- occipital protuberance
- nuchal line of the occipital bone
- upper portion of the ligamentum nuchae
what is the insertion of the trapezius (upper one third):
- lateral 1/3 of the clavicle
- acromion process
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
what is the origin of the levator scapulae:
- spinous process of C7
- transverse processes of cervical vertebrae C1 thru C4
what is the insertion of the levator scapulae:

superior medial border of scapula
what is the 3 action of the levator scapulae:
- elevation of the scapula
- downward rotation of the scapula
- extension of cervical spine
what is the origin of the sternoclediomastiod:
- medial clavicular head
- superior sternum
what is the insertion of the sternocleidomastoid:

mastoid process of the skull
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
what is the origin of the scalene, anterior:

anterior portion of the transverse processes of C3 to C6
what is the insertion scalene, anterior:

sternal attachment of the 1st rib
what are the 2 actions of the scalene, anterior, middle, posterior:
- lateral bending of the cervical spine
- elevation of the rib cage
what is the origin of the scalene, middle:

anterior portion of the transverse processes of C2-C7

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itzlinds

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14.3 extrinsic acting on cervical spine

Description

14.3 extrinsic muscles acting on the cervical spine

Updated

2014-03-04T01:02:44Z