Upper Extremity-Spine & Thorax

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ae_228
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280233
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Upper Extremity-Spine & Thorax
Updated:
2014-08-04 16:16:18
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anatomy muscles spine thorax
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Muscles of the spine and thorax
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  1. Erector Spinae Group-Action
    • Unilaterally: Laterally flex vertebral column to the same side
    • Bilaterally: Extend the vertebral column
  2. Erector Spinae Group-Origin
    Common tendon (thoracolumbar aponeurosis) that attaches to the posterior surface of sacrum, iliac crest, spinous processes of the lumbar and last two thoracic vertebrae
  3. Erector Spinae Group-Insertion
    Various attachments at the posterior ribs, spinous and transverse processes of the lumbar and last two thoracic vertebrae
  4. Erector Spinae Group-Innervation
    Spinal
  5. Branches of the Erector Spinae Group
    Spinalus-Origin
    • Spinous processes of the upper lumbar and lower thoracic vertebrae (thoracis)
    • Ligamentum nuchae, spinous process of C7 (cervicis)
  6. Branches of the Erector Spinae Group
    Spinalus-Insertion
    • Spinous process of the upper toracic (thoracis)
    • Spinous process of the cervicals, except C1 (cervicis)
  7. Branches of the Erector Spinae Group
    Longissimus-Origin
    • Common tendon (thoracis)
    • Transverse processes of upper five thoracic vertebrae (cervicis and capitis)
  8. Branches of the Erector Spinae Group
    Longissimus-Insertion
    • Lower 9 ribs and transverse processes of thoracic vertebrae (thoracis)
    • Transverse processes of cervical vertebrae (cervicis)
    • Mastoid process of temporal bone (capitis)
  9. Branches of the Erector Spinae Group
    Iliocostalis-Origin
    • Common tendon (lumborum)
    • Posterior surface ribs of 1-12 (thoracis and cervicis)
  10. Branches of the Erector Spinae Group
    Ilocostalis-Insertion
    • Transverse processes of lumbar vertebrae 1-3 and posterior surface of ribs 6-12 (lumborum)
    • Posterior surface of ribs 1-6 (thoracis)
    • Transverse processes of lower cervicals (cervicis)
  11. Multifidi and Rotatores-Action
    • Unilaterally: Rotate the vertebral column to the opposite side
    • Bilaterally: Extend the vertebral column
  12. Multifidi and Rotatores-Origin
    • Multifidi: Sacrum and transverse processes fo lumbar through cervical vertebrae
    • Rotatores: Transverse processes of lumbar-cervical vertebrae
  13. Multifidi and Rotatores-Insertion
    • Spinous processes of lumbar vertebrae through 2nd cervical vertebra
    • (multifidi span 2 to 4 vertebrae)
    • (rotatores span 1 to 2 vertebrae)
  14. Multifidi and Rotatores-Innervation
    Spinal
  15. Semispinalus Capitis-Action
    Extend the vertebral column and head
  16. Semispinalus Capitis-Origin
    Transverse processes of C4 to T5
  17. Semispinalus Capitis-Insertion
    Between the superior and inferior nuchal lines of the occiput
  18. Semispinalus Capitis-Innervation
    Cervical
  19. Splenius Capitis and Cervicis-Action
    • Unilaterally: Rotate the head and neck to the same side
    •           Laterally flex the head and neck to the same side
    • Bilaterally: Extend the head and neck
  20. Splenius Capitis and Cervicis-Origin
    • Capitis: Inferior one-half of ligamentum nuchae and spinous processes of C76 to T4
    • Cervicis: Spinous processes  of T3 to T6
  21. Splenius Capitis and Cervicis-Insertion
    • Capitis: mastoid process and lateral portion of superior nuchal line
    • Cervicis: transverse processes of C1 to C3
  22. Splenius Capitis and Cervicis-Innervation
    Cervical
  23. Suboccipitals
    Rectus Capitis Posterior Major-Action
    • Rock and tilt the head back into extension
    • Rotate the head to the same side
  24. Suboccipitals
    Rectus Capitis Posterior Major-Origin
    Spinous process of the axis (C2)
  25. Suboccipitals
    Rectus Capitis Posterior Major-Insertion
    Inferior nuchal line of the occiput
  26. Suboccipitals
    Rectus Capitis Posterior Major-Innervation
    Suboccipital
  27. Suboccipitals
    Rectus Capitis Posterior Minor-Action
    Rock and tilt the head back into extension
  28. Suboccipitals
    Rectus Capitis Posterior Minor-Origin
    Tubercle of the posteior arch of the atlas (c1)
  29. Suboccipitals
    Rectus Capitis Posterior Minor-Insertion
    Inferior nuchal line of the occiput
  30. Suboccipitals
    Rectus Capitis Posterior Minor-Innervation
    Suboccipital
  31. Suboccipitals
    Oblique Capitis Superior-Action
    • Rock and tilt the head back into extension
    • Laterally flex the head to the same side
  32. Suboccipitals
    Oblique Capitis Superior-Origin
    Transverse process of the atlas (C1)
  33. Suboccipitals
    Oblique Capitis Superior-Insertion
    Between the nuchal lines of the occiput
  34. Suboccipitals
    Oblique Capitis Superior-Innervation
    suboccipital
  35. Suboccipitals
    Oblique Capitis Inferior-Action
    Rotate the head to the same side
  36. Suboccipitals
    Oblique Capitis Inferior-Origin
    Spinous process of the axis (C2)
  37. Suboccipitals
    Oblique Capitis Inferior-Insertion
    Transverse process of the atlas (C1)
  38. Suboccipitals
    Oblique Capitis Inferior-Innervation
    Suboccipital
  39. Quadratus Lumborum-Action
    • Unilaterally: Laterally tilt (elevate) the pelvis
    •                    Laterally flex the vertebral column to the same side
    •                     Assist to extend the vertebral column
    • Bilaterally: Fix the last rib during forced  inhalation and exhalation
  40. Quadratus Lumborum-Origin
    Postior Iliac crest
  41. Quadratus Lumborum-Insertion
    Last rib and transverse processes of first through fourth lumbar vertebrae
  42. Quadratus Lumborum-Innervation
    Lumbar plexus T12, L 1, 2, 3
  43. Rectus Abdominis-Action
    • Flex the vertebral column
    • Tilt the pelvis posteriorly
  44. Rectus Abdominis-Origin
    Pubic crest, pubic symphysis
  45. Rectus Abdominis-Insertion
    Cartilage of 5th, 6th, and 7th ribs and xiphoid process
  46. Rectus Abdominis-Innervtaion
    T, 6, 7-11, 12, ventral rami
  47. External Oblique-Action
    • Unilaterally: Laterally flex vertebral column to the same side
    •                    Rotate vertebral column to the opposite side
    • Bilaterally: Flex the vertebral column
    •                  Compress abdominal contents
  48. External Oblique-Origin
    External surfaces of 5th to 12th ribs
  49. External Oblique-Insertion
    Anterior part of the iliac crest, abdominal aponeurosis to linea alba
  50. External Oblique-Innervation
    T5,6, 7-11, 12
  51. Internal Oblique-Action
    • Unilaterally: Laterally flex vertebral column to the same side
    •                     Rotate vertebral column to the same side
    • Bilaterally: Flex the vertebral column
    •                  Compress abdominal contents
  52. Internal Oblique-Origin
    Lateral inguinal ligament, iliac crest and thoracolumbar fascia
  53. Internal Oblique-Insertion
    Internal surface of lower 3 ribs, adbominal aponeurosis to linea alba
  54. Internal Oblique-Innervation
    T7, 8, 9-12, L1 iliohypogastric and ilioinguinal, ventral rami
  55. Transverse Abdominis-Action
    Compress abdominal contents
  56. Transverse Abdominis-Origin
    Lateral inquinal ligament, iliac crest, throacolumbar fascia and internal surface of lower 6 ribs
  57. Transverse Abdominis-Insertion
    Abdominal aponeurosis to linea alba
  58. Transverse Abdominis-Innervation
    T7-12, L1, iliohypogastric and ilioinguinal, ventral divisions
  59. Diaphragm-Action
    • Draw down the central tendon of the diaphragm
    • Increase the volume of the thoracic cavity during inhalation
  60. Diaphragm-Origin
    • Costal attachment: inner surface of lower 6 ribs
    • Lumbar attachment: upper 2 or 3 lumbar vertebrae
    • Sternal attachment: inner part of xiphoid process
  61. Diaphragm-Insertion
    central tendon
  62. Diaphragm-Innervation
    Phrenic C3, 4, 5
  63. Intercostals-Action
    • external intercostals: draw the ribs superiorly (increasing the space of the thoracic cavity) to assist with inhalation
    • Internal intercostals: draw the ribs inferiorly (decreasing the space of the thoracic cavity) to assist with exhalation
  64. Intercostals-Origin
    Inferior border of the rib above
  65. Intercostals-Insertion
    Superior border of the rib below
  66. Intercostals-Innervation
    Thoracic
  67. Serratus Posterior Superior-Action
    Elevate the ribs during inhalation
  68. Serratus Posterior Superior-Origin
    Spinous processes of C7 to T3
  69. Serratus Posterior Superior-Insertion
    Posterior surface of 2nd through 5th ribs
  70. Serratus Posterior Superior-Innervation
    T1, 2, 3, 4
  71. Serratus Posterior Inferior-Action
    Depress the ribs during exhalation
  72. Serratus Posterior Inferior-Origin
    Spinous processes of T12 to L3
  73. Serratus Posterior Inferior-Insertion
    Posterior surface of 9th through 12 ribs
  74. Serratus Posterior Inferior-Innervation
    T9, 10, 11, 12
  75. Intertransversarii-Action
    • Unilaterally: Laterally flex the vertebral column to the same side
    • Bilaterally: Extend the vertebral column
  76. Intertransversarii-Origin and Insertion
    • Cervical: Spanning the transverse processes of vertebrae C2 to C7
    • Lumbar: Spanning the transverse processes of vertebrae L1 to L5
  77. Intertransversarii-Innervation
    Spinal
  78. Interspinalis-Action
    Extend the vertebral column
  79. Interspinalis-Origin and Insertion
    • Cervical: Spanning the spinous processes of C2 to T3
    • Lumbar: Spanning the spinous processes of T12 to L5
  80. Interspinalis-Innervation
    Spinal

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