Muscle of the posterior cervical spine- extrinsic superficial

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Author:
GoofieDanie
ID:
4484
Filename:
Muscle of the posterior cervical spine- extrinsic superficial
Updated:
2010-01-18 22:06:58
Tags:
Anatomy
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Description:
Spinalis cervics/cpitis and others
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  1. Trapezius
    Origin
    Insertion
    Action
    O: inion, superior nuchal line,ligamentum nuchae, spinous processes of C7 to T12

    I: lateral 1/3 of clavicle, spine of scapula, acromion process

    A: elevation, retraction, and depressionof the scapula
  2. Iliocostalis cervics
    Origin
    Insertion
    Action
    O: angles of ribs (3-6)

    I: transverse processes of C4 to C6

    • A: unilateral: ipsilateral side bending of head/neck
    • bilateral: head/neck extension
  3. Longissimus cervics/ capitis
    Origin
    Insertion
    Action
    • O: common erector spinae origin
    • -cervics: transverse processes of T1 to T5
    • -capitis: transverse process of C4 to T5
    • I: ribs (btw tubercles/angles)
    • cervics: tansverse processes of the cervical spine/ TS
    • capitis: mastoid process
    • A: see iliocostalis
  4. Spinalis cervics/capitis
    Origin
    Insertion
    Action
    • O: common erector spinae
    • cervics: spinous processes C7 to T2(often missing)
    • capitis: transverse processes of C4 to C6- often blends with semispinalis capitis(tvps of c4 to t12)

    • I: cer: spof c2 sometimes c3-c4
    • cap: occiput btw superior and inferior nuchal line

    A: bilateral: neck/head extension and back

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