Deep Superficial Back S1M1

  1. Whats the difference of the Axial and Appendicular skeleton
    • Axial contains the skull, vertebrae, and ribs (80 bones)
    • Appendicular is all of the limbs (126 bones)
  2. What is the extrinsic musculature
    It includes the superficial layer that connects the axial to the superior Appendicular sysem and controls limbs as well as respiratory movements
  3. How is the extrinsic musculature innervated
    By the Anterior Rami of the spinal nerves
  4. What is the intrinsic musculature
    This includes only the axial skeleton and controls minor movement in posture. It is intervated by the posterior Rami of the spinal nerves
  5. What groups are included in the extrinsic muscles
    Superficial and Intermediate
  6. What layer is the deep muscle in
    Intrinsic muscle
  7. Where do all axio-appendicular muscles insert
    On the upper limb
  8. Origin of trapezius
    • Medial nuchal line
    • External occipital
    • Protuberance
    • Nuchal ligament
    • Spinous processes of C7-T12
  9. Insertion of trapezius
    • Lateral 1/3 of clavicle
    • Acromion
    • Spine of scapula
  10. Innervation of trapezius
    Spinal accessory nerve
  11. Action trapezius performs
    Rotation of scapula (upward and superiorly), elevates and retracts scapula as well
  12. Latissimus Dorsi origin
    • Spinus process of T7-12
    • Thoracolumbar fascia
    • Illiac crest
    • Last 3-4 ribs
  13. Latissimus Dorsi insertion
    Intertubercular groove of humerus
  14. Latissimus Dorsi innervation
    Thoracodorsal N.
  15. Latissimus Dorsi action
    Extend/adducts/ medially rotates humerus
  16. Lavator scapulae origin
    Transverse process of C1-4
  17. Lavator scapulae insertion
    Medial border of scapula
  18. Lavator scapulae innervation
    Dorsal scapular N.
  19. Lavator scapulae action
    Elevates scapula and rotates it downward/inferiorly
  20. Rhomboid major and minor origin
    • Spinous process of T2-5
    • Minor - nuchal ligament, spinous process of C7-T1
  21. Rhomboid major and minor insertion
    Medial border of scapula
  22. Rhomboid major and minor innervation
    Dorsal scapular N.
  23. Rhomboid major and minor action
    Retract scapula and rotates it downward/inferiorly; fix scapula to thoracic wall
  24. Serratus muscles are considered what in what layer
  25. Sarratus posterior superior origin
    Ligamentum nuchae, spinous process of C7-T3
  26. Sarratus posterior superior insertion
    Superior border of ribs 2-4
  27. Sarratus posterior superior innervation
    Intercostal nerves T1-4/T2-5
  28. Sarratus posterior superior action
    Proprioception/elevates ribs
  29. Sarratus posterior inferior origin
    Spinous process of T11-L2
  30. Sarratus posterior inferior insertion
    Inferior border of ribs 8/9-12
  31. Sarratus posterior inferior innervation
    Intercostal nerves T9-T12
  32. Sarratus posterior inferior action
    Proprioception/depresses ribs
  33. Splenius capitis and cervicis origin
    Nuchal ligament, spinus process of C7-T3/4
  34. Splenius capitis and cervicis insertion
    • Capitis: mastoid process of temporal bone, lateral 1/3 of superior nuchal line
    • Cervicis: transverse process of C1-3/4
  35. Splenius capitis and cervicis innervation
    Posterior rami of spinal nerves
  36. Splenius capitis and cervicis action
    • Alone: lateral flexion of neck, rotate head to side of muscles
    • Together: extension of head and neck
  37. Erector spine includes what three muscles
    Iliocostalis, Longissimus, spinalis
  38. The nerve supply to Longissimus is
    Posterior ramis of spinal nerves
  39. What is the difference between a sprain and strain
    A sprain is just ligaments involved, a strain is tearing of muscle fibers. A sprain is worse.
  40. Splenius is considered superficial, deep, or intermediate muscle
  41. Rectus capitus major origin
    Spinous process of C2
  42. Rectus capitus major insertion
    Lateral part of inferior nuchal line
  43. Rectus capitus major innervation
    Suboccipital N.
  44. Rectus capitus major action
    Extends neck and rotates to same side
  45. Rectus capitus minor origin
    Posterior tubercle of posterior arch of C1
  46. Rectus capitus minor insertion
    Medial part of inferior nuchal line
  47. Rectus capitus minor innervation
    Suboccipital N.
  48. Rectus capitus minor action
    Extension of neck
  49. Obliquus capitis inferior origin
    Posterior tubercle of posterior arch of C2
  50. Obliquus capitis inferior insertion
    Transverse process of C1
  51. Obliquus capitis inferior innervation
    Suboccipital N.
  52. Obliquus capitis inferior action
    Rotates atlas to turn face to same side
  53. Obliquus capitis superior Origin
    Transverse process of C1
  54. Obliquus capitis superior insertion
    Occipital bone
  55. Obliquus capitis superior innervation
    Suboccipital N.
  56. Obliquus capitis superior action
    Extension of neck, lateral flexion
  57. The suboccipital triangle includes what muscles
    Rectus capitis major, superior oblique, inferior oblique
Card Set
Deep Superficial Back S1M1