Mrt 240

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  1. How many bones make up the orbit
  2. List the cranial bones of the orbit
    • Frontal
    • sphenoid bone
    • Ethmoid bone
  3. List the Facial bones of the orbit
    • Maxilla
    • Zygoma
    • Lacrimal
    • Palatine
  4. Which bones included in the orbit is the most medial
  5. Which bone in the orbit is the most lateral
  6. Which three bones make up the outer rim of the orbit
    • Frontal
    • Maxilla
    • Zygoma
  7. The spheniod strut is the smallest root of bone separating which two openings
    • Optic Foramen
    • Superior orbital Fissure
  8. List the openings into the orbit
    • optic foramen (canal)
    • •sphenoid bone (for optic nerve)
    • superior orbital fissure
    • •sphenoid bone between greater & lesser wings (for nerves and blood vessels)
    • inferior orbital fissure
    • •between maxilla & sphenoid (for nerves)
  9. Which paranasal sinuses are located directly below the sella turcica
    Sphenoid sinuses
  10. The body of each maxilla contains a large pyramid cavity called the
    Maxillary sinus
  11. Which paranasal sinuses lie posterior to the supercilliary arches between the outer and inner tables of the skull
    Frontal sinuses
  12. What cavity of the body do all paranasal sinuses communicate with
    Nasal cavity
  13. List at least 3 functions of the paranasal sinuses
    • mucus,air filtration
    • warm & moisten inspired air
    • make the skull lighter
    • resonance chamber for voice
    • shock absorbers for brain
  14. At what age are all paranasal sinuses completly developed
    18 years
  15. Which four bones of the skull articulate with the zygoma
    • Frontal bone superiorly
    • Zygomatic process of the temporal bone
    • Maxilla anteriorly
    • Sphenoid bone posteriorly
  16. What bony anatomy of the maxilla supports the teeth
    Alveolar process
  17. What facial bone forms the inferior part of the nasal septum
  18. Which facial bones form the prominence of the cheeks
    Zygomatic bone
  19. Which facial bones form the posterior one forth of the roof of the mouth
    palatine bones (Horizontal plate)
  20. What bone forms the anterior portion of the median wall of the orbit
    Lacrimal bone
  21. What structure does the condyle of the mandible articulate with to form the temporomandibular joint
    • Mandibular fossa
    • Temporal bone
    • and the head of the condylar process of the mandible
  22. What is the name given to the smooth raised prominence between the eyebrows just above the bridge of the nose
  23. Which five bones of the skull articulate with each parietal bone
    • Frontal bone
    • Shpenoid bone
    • Temporal bone
    • Occipital bone
    • parietal bone(opposite)
  24. The prominent bump at the inferoposterior portion of the skull is termed the
    External occipital protuberance(inion)
  25. The small upper horizontal portion of the ethmoid bone containing many small openings is termend
  26. What is the purpose of the cribiform
    transimission of olfactory nerves
  27. The central depresion on the body of the sphenoid bone resembling a saddle is termed the
    Sella turcica
  28. What structure is found in the sella turcica
    Piturtary gland
  29. What cranial bone has a large aperture called the foramen magnum
    Occpital bone
  30. What cranial bone contains the organs of hearing and balance
    Temporal bone -Petromastoid portion
  31. What are the bones of the skull
    • Frontal bone
    • Parietal bone(2)
    • Occipital bone
    • Temporal bone (2)
    • Sphenoid bone
    • Ethmoid bone
  32. What are the bones of the face
    • Maxillary bone(2)
    • Zygomatic bone(2)
    • Nasal bone(2)
    • Lacrimal bone(2)
    • Palatine bone(2)
    • Inferior Concha(2)
    • Vomer
    • Mandible
  33. The skull can be divided into two parts what are they
    • Cerbral cranium
    • Visceral cranium
  34. Cerebral cranium
    Part of the skull that surrounds the brain and protects it.
  35. Visceral cranium(facial bones)
    Part of the skull that form cavities for the protection of the eyes , nasal passage and mouth
  36. Frontal bone
    • forms the forehead
    • part of the roof of the skull
    • helps to form the anterior cranial fossa
  37. Parietal bone
    • 2 bones
    • forms the roof of skull
    • most of the lateral walls(left and right)
  38. Occipital bone
    Forms posterior and part of the base of skull
  39. Temporal bone
    • 2 bones
    • Forms part of the lateral wall and base of the skull (left and right)
  40. Spheniod bone
    • Helps to form a small part of the lateral wall of the skull
    • Part of the orbit
    • Part of base of skull
  41. Ethmoid bones
    • Lies in the anterior part of the base of the skull
    • Principal supporting structure of the nasal cavity
    • Contributes to the formation of the orbits
  42. Maxillary bone
    • 2bones
    • make up the large part of the facial bones
    • extend from the medial borders of the orbits to the upper teeth
  43. Zygomatic bone
    • 2bones
    • each forms a prominent part of the upper cheek
  44. Nasal bone
    • 2 bones
    • form the bridge of the nose
  45. Lacrimal bone
    • 2bone
    • each are four sided flat bones which help to form the medial walls of the orbit.
  46. Palatine bone
    • 2bone
    • One one on each side of the nasal cavity
    • extends medially from the lateral walls of the nasal cavity
    • Reffered to as turbinates
  47. Vomer
    helps to form the inferior part of the nasal septrum
  48. Mandible
    forms the lower jaw
  49. Location of the oldfactory
    Cribriform plate of the ethmoid on either side of the crista gali
  50. Location of Optic nerve
    • Left and right
    • pass from internal base of skull (just below medial aspect of lesser wings) extend to orbit
  51. Location of Superior orbital fissure
    • Left and right
    • between the lesser and greater wings of the sphenoid opening from internal base of the skull and the orbit
  52. Location of Foramen rotundum
    • Left and right
    • medial margin of the greater wing of the sphenoid
    • close to medial end of the superior orbital fissure
    • passes forward in the skull to exit on the anterior aspect of the sphenoid behind maxilla
  53. Location of Foramen Ovale
    • Left and right
    • Behind and lateral to foramen rotundum
  54. Location of Foramen Spinosum
    • Left and right
    • Behind and lateral to foramen ovale in the posterolateral corner of the greater wing of the sphenoid
  55. Foramen Lacerum
    • Left and right
    • Apex of pertrous pyramid of temporal bone
    • Medial surface is continuous with carotid groove
  56. Carotid Canal
    • Left and right
    • Passes from carotid canal
    • Opening on inferior surface of petrous pyramid to upper aspect of foramen lacerum
  57. Internal acoustic meatus (foramen)(IAM)
    • Left and right
    • On internal aspect of the skull
    • On posterior surface of the petrous pyramid of temporal bone
  58. Jugular Foramen
    • Left and right
    • Between lateral part of occipital bone and petrous pyramid of temporal bone
    • Posterior to internal acoustic meatus
  59. Foramen Magnum
    Centre of posterior cranial fossa
  60. Hypoglossal Canals
    • Left and right
    • On either side of foramen magnum
  61. Where is the lambdoidal suture located
    Parietal and occipital bone
  62. There are mormally two of each of each exept
  63. The zygomatic process is part of the
    temporal bone
  64. The mandibular fossa articulates with what part of the mandible
    Condylar process
  65. The temporal bone articulates with all of the folowing except
    Parietal bone
    Zygomatic bone
    frontal bone
    Sephenoid bone
    Frontal bone
  66. Which part of the temporal bone is located posterior and inferior to the external auditory meatus
    Mastoid process
  67. Where is the pituitary gland located
    Sella turcica of the sphenoid bone
  68. The superior and middle nasal conchae are part of which bones
  69. Which bone do the tear ducts pass through
  70. The mandibular branch of the V cranial nerve passes through which foramen
  71. Which 9 bones articulate with the sphenoid bone
    • Ethmoid
    • Palatine
    • Temporal
    • Frontal
    • Zygoma
    • Vomer
    • Parietal
    • Occipital and Maxilla
  72. Which 5 bones articulates with the temporal bone
    • Sphenoid
    • Parietal
    • Occipital
    • Mandible
    • Zygoma
Card Set:
Mrt 240
2012-04-01 16:45:29

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