ch. 10 embryo #2

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Author:
jackiedh
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45970
Filename:
ch. 10 embryo #2
Updated:
2010-10-29 18:25:47
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chapter ten embryology
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Description:
chapter ten embryology continued
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  1. what are the two histological features of the dentogingival junctional tissues:
    • sulcular epithelium
    • junctional epithelium
  2. what epithelium is sulcular epithelium?
    nonkeratinized stratified squamous epithelium
  3. sulcular epithelium is ______ packed with _____ desmosomes
    • tightly
    • many
  4. in the sulcular epithelium, there is a _____ junction between the epithelium and _______ _______. there is ____ papilla, meaning it is _______.
    • smooth
    • lamina propria
    • no
    • healthy
  5. what kind of epithelium does the JE have?
    nonkeratinized stratified squamous epithelium
  6. the JE epithelium is _______ packed with _______ desmosomes. it is more ________ so ________ blood cells can come from the blood vessels in the ________ _______ and migrate into the epithelium.
    • loosely
    • fewer
    • permeable
    • white
    • lamina propria
  7. what purpose do the white blood cells in the junctional epithelium serve?
    they keep the tissue healthy by protecting it from bacterial plaque
  8. the JE has ______ layers of _________. only _____ cells thick!
    • thin
    • epithelium
    • 4
  9. the basal layer in the _____ reproduces cells by ________.
    • JE
    • mitosis
  10. in the JE, the cells don't fill with _______ or _______ like normal layers of epithelium.
    • keratin
    • flatten
  11. which layer is the basement membrane? it is the velcro between the __________ and ______ _______
    • external basal lamina
    • epithelium
    • lamina propria
  12. _________ ___________ ___________ is the new basement membrane of the attachment
    internal basal lamina
  13. the internal basal lamina is on the ______ of the sulcus.
    it is the velcro between the _________ and _______ _______.
    it has both the ________ _________ and _______ _______ layers
    it is continuous with the ________ _________ _________
    • inside
    • epithelium, tooth surface
    • lamina lucida and lamina densa
    • external basal lamina
  14. ________ secrete the initial basal lamina and develop ____________.
    • ameloblasts
    • hemidesmosomes
  15. during active eruption, ______ peel away, but remain ______ at the ______. this forms the initial _________ ___________.
    • tissues
    • attached
    • CEJ
    • junctional epithelium
  16. the ________ junctional epithelium is formed by __________ of the cells from the ______.
    • definitive
    • differentiation
    • REE
  17. the whole process of the development of the dentogingival junctional tissues could take ____ to ____ years!
    2 to 4
  18. the junctional epithelium turns over in ____ to ____ days so don't re-_____ for at least a ______.
    • 4 to 6
    • probe
    • week
  19. what are the two clinical considerations with the JE?
    • gingivitis
    • periodontitis
  20. gingivitis is increased ________ to allow white blood cells ____, but _______ in.
    • permeability
    • out
    • bacteria
  21. acute inflammation is:
    gingivitis
  22. _________ of the epithelium exposes the _______ vessels of the ________ ________. when you probe, you can ______ these ________ and get B.O.P.
    • ulceration
    • blood
    • lamina propria
    • injure
    • vessels
  23. is gingivitis reversible or irreversible?
    reversible
  24. the apical migration of the EA is:
    periodontitis
  25. the deeper the ____ causes a deeper ________ sulcus, which we call a _________ _______.
    • EA
    • gingival
    • periodontal pocket
  26. bacterial plaque and toxins penetrate the _________ _______, ________ ligament and bone in periodontitis
    • connective tissue
    • periodontal
  27. what 2 things can be present in periodontitis?
    • bleeding on probe
    • furcations
  28. in periodontitis, teeth may become ______ as the _______ and _________ ligament are _________. this is __________.
    • mobile
    • bone
    • periodontal
    • damaged
    • irreversible

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