MSAK1 - Back Muscles

Card Set Information

Author:
agatton
ID:
3914
Filename:
MSAK1 - Back Muscles
Updated:
2010-01-10 13:47:58
Tags:
Back Muscle WCCMT
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Description:
Muscles of the posterior trunk
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  1. Latissimus Dorsi
    • SPs of T7-L5, Post Sacrum, Post Iliac Crest (via TL facsia)
    • -Lower 3-4 Ribs, Inf Angle of Scap
    • Bicipital Groove of Humerus
    • -Medial Lip
    • MED ROT, EXT and ADD of arm at shoulder jt
    • ANT TILT of pelvis
    • Thoracodorsal - C6, 7, 8
  2. Rhomboids Minor
    • SPs of C7-T1
    • -and Inf nuchal Ligament
    • Root of the Spine of the Scap
    • RETRACTS (ADD) and ELEVATES the Scap at scapulocostal jt
    • Dorsal Scapular - C4, 5

  3. Rhomboids Major
    • SPs of T2-T5
    • From between Root of the Spine of the Scap to the Inf Angle
    • RETRACTS (ADD) and ELEVATES the Scap at scapulocostal jt
    • Dorsal Scapular - C4, 5
  4. Serratus Anterior
    • Ribs 1-9 (Ant-Lat surface)
    • Ant surface of entire Medial Border of Scap
    • PROTRACTS (ABD) and UPWARDLY ROTATES the Scap at scapulocostal jt
    • Long Thoracic - C5, 6, 7
  5. Serratus Posterior Superior
    • SPs of C7-T3
    • -and lower Nuchal Line
    • Ribs 2-5
    • ELEVATES ribs 2-5 at sternocostal and costospinal jts
    • Intercostal #2-5
  6. Serratus Posterior Inferior
    • SPs of T11-L2
    • Ribs 9-12
    • DEPRESSES ribs 9-12 at sternocostal and costospinal jts
    • Subcostal and Intercostal #9-11
  7. Quadratus Lumborum
    • Medial 1/2 of 12th rib and TPs of L1-4
    • Posteromedial Iliac Crest, Iliolumbar ligament
    • ELEVATES and ANTERIORLY TILTS the pelvis at lumbosacral jt
    • EXTENDS and LATERALLY FLEXES the trunk at spinal jts
    • Lumbar Plexus - T12-L3

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