embryo ch. 9 oral mucosa

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jackiedh
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44261
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embryo ch. 9 oral mucosa
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2010-10-24 14:35:10
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oral mucosa
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embryo ch. 9 oral mucosa
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  1. The oral mucosa is the tissue that lines the _______ _________.
    What three layers does it have?
    • oral cavity
    • 1. epithelium
    • 2. basement membrane
    • 3. lamina propria
  2. What is the new name for the connective tissue proper?
    lamina propria
  3. What are the layers of the lamina propria?
    • papillary layer
    • capillary plexus
    • dense layer
    • submucosa
  4. The loose connective tissue with "papilla" is the _________ layer.
    It has ___________ projections into the overlying __________.
    • papillary
    • fingerlike
    • epithelium
  5. The capillary system that runs between the two layers and sends more capillaries up into each papilla
    Capillary plexus
  6. Dense Connective Tissue
    Dense Layer
  7. Submucosa _____ or ______ not be present deep to the _______ layer.
    It can be ________ tissue, _______ glands, or muscle.
    • may
    • may
    • dense
    • adipose
    • saliva
  8. If the __________ is not present, the connective tissue connects directly to the bone and becomes the ___________ covering for the _____.
    • submucosa
    • mucoperiosteum
    • bone
  9. What are the three different classifications of oral mucosa?
    • lining mucosa
    • masticatory mucosa
    • specialized mucosa
  10. Which mucosa has a softer surface texture, moist, and able to stretch/compress?
    lining mucosa
  11. Which mucosa has a rubbery surface texture and is resilient
    masticatory mucosa
  12. Which mucosa has lingual papillae?
    Specialized mucosa
  13. What are the three types of epithelium of the oral mucosa?
    • nonkeratinized stratified squamous epithelium
    • orthokeratinized
    • parakeratinized
  14. Nonkeratinized stratified squamous epithelium:
    • found in the lining mucosa
    • MOST COMMON in the oral cavity
  15. What are the three layers of the nonkeratinized stratified squamous epithelium?
    • basal layer
    • intermediate layer
    • superficial layer
  16. The basal layer is the _______. it is a _______ layer of cells that sit above the ________ ___________.
    • deepest
    • single
    • basement membrane
  17. What two functions does the basal layer produce?
    • lamina lucida of the basement membrane
    • new epithelial cells by mitosis. (no more mitosis once you leave this layer)
  18. The intermediate layer is the ______ layer. The cells have migrated __________ from the basal layer.
    It makes up the bulk of the __________.
    • middle
    • superficially
    • epithelium
  19. The superficial layer is the _____ layer. Cells have continued to _______ and they've gotten_______ as they move up. They are now ________.
    • top
    • migrate
    • flatter
    • squames
  20. When the superficial layer become squames, what happens?
    They die and are shed from the tissue
  21. Found in the masticatory mucosa. Least common in the oral cavity:
    Orthokeratinized stratified squamous epithelium
  22. What are the four new layers and names of the orthokeratinized s.s.e.?
    • basal layer
    • prickle layer
    • granular layer
    • keratin layer
  23. The basal layer in the orthokeratinized s.s.e. is the _______.
    same
  24. The prickle layer is similar to the __________ layer. it is called prickle because when you dry it out to look under a microscope, the cells ______ but maintain their __________.
    • intermediate
    • shrink
    • desmosomes
  25. Which layer of the orthokeratinized s.s.e. makes up the bulk of the epithelium?
    prickle layer
  26. The granular layer is similar to the ________ layer. In these cells, we see _____________ granules that will eventually __________ the cell.
    • intermediate
    • keratohyaline
    • keratinize
    • (like jello powder and jello)
  27. The keratin layer is similar to the ___________ layer. They have migrated to the _____, __________ out, and filled with _________. They have no _______.
    • superior
    • top
    • flattened
    • keratin
    • nuclei
  28. The keratin cells _____ and are ______ from the tissue.
    • die
    • shed
  29. Parakeratinized stratified squamous epithelium are ______ common than the orthokeratinized. Same concept, but keratin cells ____ nuclei.
    • more
    • have
    • (they are rubbed off before they get all their keratin)

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