Exam 2: Second Order -Part 4

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Author:
brau2308
ID:
160217
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Exam 2: Second Order -Part 4
Updated:
2012-06-28 18:23:11
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anatomy origin insertion action innervation
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review of second order for exam 2
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  1. Trapezius
    Origin:
    external occipital protuberance; superior nuchal line; ligamentum nuchae; spinous process of C7-T12
  2. Trapezius
    Insertion:
    lateral 1/3 of clavicle, acromion, and spine of scapula
  3. Trapezius
    As whole Action:
    retracts scapula
  4. Trapezius
    Action of superior fibers:
    pull lateral angle upward
  5. Trapezius
    Action of inferior fibers:
    pull base of spine downward, rotating glenoid cavity upward (abduction of arm)
  6. Trapezius
    Action of middle fibers:
    upward rotation and prevents sagging of lateral angle (glenoid cavity) of scapula
  7. Trapezius
    Innervation:
    CN XI (spinal accessory N)
  8. Splenius capitus
    Origin:
    nuchal ligament and spinous process of T1-6
  9. Splenius capitus
    Insertion:
    mastoid process and superior nuchal line
  10. Splenius capitus
    Unilateral Action:
    laterally flexes and rotates head to same side
  11. Splenius Capitus
    Bilateral Action: 
    extends head and neck
  12. Splenius capitus
    Innervation:
    dorsal primary rami of cervical nerves
  13. Levator scapulae
    Origin:
    transverse processes of C1-4 vertebrae
  14. Levator scapulae
    Insertion:
    superior angle of scapula
  15. Levator scapulae
    Action:
    elevates scapula, inferior rotation of scapula
  16. Levator scapulae
    Innervation:
    dorsal scapular N and C3-4
  17. Anterior scalene
    Origin:
    transverse processes of C4-6
  18. Anterior scalene
    Insertion:
    first rib
  19. Anterior scalene
    Action:
    flexes head
  20. Anterior scalene
    Innervation:
    cervical nerves C4-6
  21. Middle scalene
    Origin:
    transverse processes of C4-6
  22. Middle scalene
    Insertion:
    first rib
  23. Middle scalene
    Action:
    flexes neck laterally, lifts 1st rib in forced inspiration
  24. Middle scalene
    Innervation:
    anterior rami of cervical spinal nerves
  25. Posterior scalene
    Origin:
    transverse processes C4-6
  26. Posterior scalene
    Insertion:
    2nd rib
  27. Posterior scalene
    Action:
    Flex neck lateraly, lifts 2nd rib in forced inspiration
  28. Posterior scalene
    Innervation:
    anteriorrami of cervicl spinal nerves
  29. Omohyoid (inferior belly)
    Origin:
    scapula
  30. Omohyoid
    Insertion:
    hyoid
  31. Omohyoid
    Action:
    depress hyoid bone (retracts hyoid)
  32. Omohyoid
    Innervation:
    ansa cervicalis (C1-3)
  33. Mylohyoid
    Origin:
    mylohyoid line of mandible
  34. Mylohyoid
    Insertion:
    mylohyoid raphe and body of hyoid
  35. Mylohyoid
    Action:
    elevates floor of mouth and tongue
  36. Mylohyoid
    Innervation:
    CN V (Mandibular division)
  37. Geniohyoid
    Origin:
    mental spine of mandible
  38. Geniohyoid
    Insertion:
    body of hyoid
  39. Geniohyoid 
    Action:
    pulls hyoid anterosuperiorly
  40. Geniohyoid
    Innervation:
    C1 via hyoglossal N
  41. Stylohyoid
    Origin:
    styloid process of temporal bone
  42. Stylohyoid
    Insertion:
    hyoid
  43. Stylohyoid
    Action:
    elevates hyoid
  44. Stylohyoid
    Innervation:
    CN VII
  45. Digastric
    Origin of anterior belly:
    digastrics fossa of mandible
  46. Digastric
    Origin of posterior belly:
    mastoid process
  47. Digastric
    Insertion:
    intermediate tendon to hyoid
  48. Digastric
    Action:
    steadies hyoid, depresses mandible
  49. Digastric
    Innervation of anterior belly:
    nerve to mylohyoid (CN V)
  50. Digastric
    Innervation of posterior belly:
    CN VII
  51. Sternohyoid
    Origin:
    manubrium of sternum and medial clavicle
  52. Sternohyoid
    Insertion:
    body of hyoid
  53. Sternohyoid
    Action:
    depresses hyoid
  54. Sternohyoid
    Innervation:
    ansa cervicalis
  55. Sternothyroid
    Origin:
    sternum
  56. Sternothyroid
    Insertion:
    thyroid cartilage
  57. Sternothyroid
    Action:
    depresses hyoid and larynx
  58. Sternothyroid
    Innervation:
    ansa cervicalis
  59. Thyrohyoid
    Origin:
    thyroid cartilage
  60. Thyrohyoid
    Insertion:
    hyoid
  61. Thyrohyoid
    Action:
    depresses hyoid and elevates larynx
  62. Thyrohyoid
    Innervation:
    C1 via hypoglossal N
  63. Omohyloid
    Superior belly Origin: 
    hyoid

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