Exam 3: Second Order Part 1

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Author:
brau2308
ID:
161895
Filename:
Exam 3: Second Order Part 1
Updated:
2012-07-10 10:11:39
Tags:
anatomy origin insertion action innervation
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Description:
review of second order for exam 3
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  1. Masseter
    Origin:
    zygomatic arch
  2. Masseter
    Insertion:
    outer surface of ramus of mandible
  3. Masseter
    Action:
    elevate and laterally move mandible (grinding)
  4. Masseter
    Innervation:
    masseteric N (from CN V3)
  5. Temporalis
    Origin:
    temporal fossa
  6. Temporalis
    Insertion:
    coronoid process of mandible
  7. Temporalis
    Action as whole: 
    laterally moves mandible
  8. Temporatlis
    Action of anterior fibers: 
    elevates mandible
  9. Temporalis
    Action of posterior fibers: 
    retract mandible
  10. Temporalis
    Innervation:
    deep temporal N (from CN V3)
  11. Medial Pterygoid
    Origin:
    medial surface of lateral pterygoid plate
  12. Medial Pterygoid
    Insertion:
    medial surface of ramus, posteroinferior to mandibular foramen
  13. Medial Pterygoid
    Action:
    elevates and laterally moves mandible
  14. Medial Pterygoid
    Innervation: 
    media pterygoid N (from CN V3)
  15. Lateral Pterygoid
    Origin:
    almost entire roof and medial wall of infratemporal fossa
  16. Lateral Pterygoid
    Insertion:
    pit on anterior part of neck of mandible; articular disc of TMJ
  17. Lateral Pterygoid
    Action: 
    depress and protrude mandible
  18. Lateral Pterygoid
    Innervation:
    lateral pterygoid N (from CN V3)
  19. Ciliary muscle
    Action: 
    changes shape of lens (accommodation)
  20. Ciliary muscle
    Innervation:
    CN III (oculomotor N)
  21. Sphincter papillae
    Action:
    smaller pupil
  22. Sphincter papillae
    Innervation:
    postganglionic parasympathetic CN III
  23. Dilator papillae
    Action:
    larger pupil
  24. Dilator papillae
    Innervation: 
    postganglionic sympathetic carotid plexus
  25. Superior rectus
    Origin:
    common tendinous ring
  26. Superior rectus
    Insertion:
    eyeball
  27. Superior rectus
    Action:
    elevates eye
  28. Superior rectus
    Innervation:
    CN III (oculomotor N)
  29. Lateral rectus
    Origin:
    common tendinous ring
  30. Lateral rectus
    Insertion:
    eyeball
  31. Lateral rectus
    Action: 
    abducts eye
  32. Lateral rectus
    Innervation:
    CN VI (abducens N)
  33. Medial rectus
    Origin:
    common tendinos ring
  34. Medial rectus
    Insertion:
    eyeball
  35. Medial rectus
    Action:
    adducts eye
  36. Medial rectus
    Innervation:
    CN III (oculomotor N)

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