ch 9 dental anatomy

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ch 9 dental anatomy
2010-11-22 19:02:37
oral mucosa

ch 9 oral mucosa
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  1. what is the most common oral lining mucosa: (keratinized or non-keratinized?)
  2. buccal and labial mucosa
    alveolar mucosa
    floor of the mouth
    ventral surface of the tongue
    soft palate
    these all fall into the category of ________ mucosa, _________ mucosa
    • oral
    • lining
  3. what are 4 clinical considerations of the oral mucosa lining mucosa?
    • sutures
    • fordyce's spots/granules
    • easier to inject
    • infections spread quickly
  4. what are fordyce's spots/granules?
    misplaced sebaceous glands-yellow, very common
  5. rubbery surface texture is _________ mucosa
  6. T/F masticatory mucosa is resilient
  7. what are the three parts of the mouth that are masticatory mucosa?
    • attached gingiva
    • hard palate
    • dorsal surface of the tongue
  8. T/F masticatory mucosa can be orthokeratinized or parakeratinized
    why yes it can!
  9. what is the least common in the oral cavity? masticatory mucosa __________
  10. if a cell is orthokeratinized, what does that mean?
    it has no nuclei
  11. what protects against physical, chemical microbial attack?
    orthokeratinized (masticatory mucosa)
  12. what protects from dehydration and heat loss?
    orthokeratinized (masticatory mucosa)
  13. what color is an orthokeratinized cell?
  14. parakeratinized means what?
    the cell has a nuclei
  15. what type of cell is associated with higher level of attached gingiva?
    parakeratinized (masticatory mucosa)
  16. what has special protection against bacterial invasion, mechanical irritation, dryness?
    masticatory mucosa parakeratinized
  17. name three clinical considerations of masticatory mucosa:
    • sutures RARELY needed
    • injections DIFFICULT (not deep, harder)
    • LONGER healing time (24 days)
  18. what are the two types of hyperkeratinization?
    • non-keratinized
    • keratinized
  19. hyperkeratinization, non-keratinized may transform into _________ in response to trauma
  20. name 2 examples of hyperkeratinized non-keratinized responses to trauma:
    • linea alba
    • masticatory habits
  21. hyperkeratinization, keratinized is occurring in response to _________ trauma
  22. heat from smoking or hot fluids is what keratinization?
  23. can hyperkeratinization, keratinized be reversed if trauma is removed?
    yes sir!
  24. somatitis if referred to:
  25. what mucosa is found on the dorsal and lateral surfaces of the tongue along with papilla?
    specialized mucosa
  26. inner lips and cheeks are what type of mucosa?
    labial and buccal
  27. labial/buccal mucosa is extremely _________, opaque ________, shiny, and moist.
    • thick
    • pink
  28. T/F labial/buccal mucosa is compressible (adipose tissue) and stretches easily
  29. ________ and ________ mucosa function as ____ unit
    • labial
    • buccal
    • one
  30. what mucosa lines the vestibules of the oral cavity?
    alveolar mucosa
  31. what type of attachment is alveolar mucosa?
    loose attachment
  32. the floor of the mouth and ________ _________ function as one unit
    ventral tongue
  33. the floor of the mouth and ventral tongue have ______ tissue, _______-________ in color, moist and shiny, and ________
    • thin
    • reddish-pink
    • mobile
  34. attached gingiva is part of the ____________ junction
  35. what is opaque pink with pigmentation and stippled?
    attached gingiva
  36. what is pink, firm, and IMMOBILE?
    hard palate
  37. the medial portion is firmer than the lateral on the hard palate because of the ________ ________ _________
    median palatine suture
  38. three clinical considerations with keratinization:
    • tissue grafting
    • free gingival graft
    • subepithelial connective tissue graft
  39. the subepithelial ct graft is from the _________ ________, creates more cells. more ________, has a base layer and repairs _______
    • lamina propria
    • vascular
    • nestle QUICK
  40. what part of the tongue is tightly packed striated muscle bundles with little adipose tissue?
    anterior 2/3
  41. which part of the tongue is less mobile, bulkier, and has less adipose tissue?
    posterior 1/3
  42. what are the 2 mucosal layers on the dorsal surface of the tongue?
    • masticatory mucosa
    • specialized mucosa
  43. the specialized mucosa of the dorsal tongue is:
    tongue papilla
  44. the masticatory mucosa of the dorsal tongue covers the _________ __________
    muscle tissue
  45. T/F the taste bud cells are associated with fungiform, foliate, circumvallate, and filiform papilla.
  46. there is a ________ turnover time for taste bud cells
    muy muy RAPIDo!
  47. what are the 4 fundamental taste sensations?
    • sweet
    • sour
    • bitter
    • salty
  48. where on the tongue are the taste sensations?
  49. taste cells transmit ________
  50. what is a taste pore?
    opening to the taste bud
  51. which part of the tongue is supporting?
    outer portion
  52. which is the most common of the papilla of the tongue?
    FILIFORM papilla
  53. filiform papilla is located on the ________ surface of the tongue
  54. what is the shape of filiform papilla? what do they help do?
    fine pointed cones-towards pharynx to help shunt food.
  55. filiform papilla are ___-___mm
  56. what kind of texture do filiform papilla have?
  57. increased keratin of filiform papilla = _________ (color)
  58. T/F filiform papilla are NOT taste buds
    TRUE this time!
  59. what is the function of filiform papilla?
    to guide the food back into the pharynx
  60. which papilla are LESS common?
    fungiform papilla
  61. the fungiform papilla are located on the ________ of the tongue, not near the _______ _______
    • dorsum
    • sulcus terminalis
  62. what shape are fungiform papilla?
  63. fungiform papilla are ____mm
    1 mm
  64. the color of fungiform papilla are _______ dots, meaning highly _______
    • reddish
    • vascular
  65. the function of fungiform papilla is ________ ________
    taste (the rainbow!) sensation
  66. foliate papilla are like _____ or ______
    • gills
    • vents
  67. foliate papilla are located on the _________ ________ portion of the tongue
    posterior lateral
  68. there are _____-_____ vertical ridges of foliate papilla
  69. foliate papilla are ______ shaped
  70. taste buds are located on the ________ ________ of foliate papilla
    lateral portion
  71. do you get to taste (the rainbow) with foliate papilla?
    yes! (only if you eat skittles)
  72. there are _____-_____ circumvallate papilla on the tongue
  73. the location of circumvallate papilla are located just _______ to the ______ ________; inverted ___ shaped row facing the pharynx
    • anterior
    • sulcus terminalis
    • V
  74. what are the shape of circumvallate papilla?
    mushroom shaped
  75. what salivary glands are located in the circumvallate papilla?
    Von Ebners
  76. T/F there is a circular trough/trench in the circumvallate papilla to keep the taste buds hydrated at all times.
    FALSE! to keep the taste buds CLEANED OUT!
  77. are circumvallate papilla used for taste?
  78. what are the clinical considerations of the tongue?
    • geographic tongue
    • black hairy tongue
  79. the location of geographic tongue appears on the ________ _______
    dorsal surface
  80. what is the color of geographic tongue?
    red to paler pink to white paches
  81. what is the cause of geographic tongue?
    changes in FILIFORM papilla (going from parakeratinized-red to orthokeratinized-white)
  82. sore, burning, trauma, hereditary, may not have symptoms are:
    geographic tongue
  83. what is the treatment for geographic tongue?
    haha, there isn't any. it is non-pathologic
  84. what is black hairy tongue?
    the lack of shedding, use tongue scraper, brush tongue. it is caused by meds, coffee, and smoking. GROSS!
  85. black hairy tongue is present on the _______ surface of the tongue
  86. normal shedding of _________ does not occur with black hairy tongue
  87. there will be fungal overgrowth due to high doses of _______ or ________ with black hairy tongue
    • antibiotics
    • radiation
  88. what does black hairy tongue look like?
    thick layer of dead cells and keratin-extrinsically stained by tobacco, meds, oral chromogenic bacteria
  89. what are clinical considerations of mucosa turnover time?
    • healing varies in tissue types
    • aging is considered (older = slower)
    • delay biopsy or referral for 2 weeks