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33 Cards in this Set
- Front
- Back
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What are the three main layers of oral mucosa?
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Epithelium
Basement membrane Lamina propria |
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What are the two pattern types of epithelium?
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keratinized and non-keratinised
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8. Keratinised epithelium can further be divided into two catergories. What are they?
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Orthokeratinised
Parakeratinised |
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9. What are the layers found within orthokeratinised epithelium?
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Stratum basale
stratum spinosum stratum granulosum stratum corneum |
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10. What are alternative names for the names of the layers of orthokeratinised epithelium?
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basal cell layer
prickle cell layer granular cell layer keratinized layer |
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15. What are the different layers found in non-keratinised epithelium?
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basal cell layer
intermediate layer superficial layer |
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19. Non-keratinocytes can be differentiated into three kinds. What are they?
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Melanocytes
Merkel cells Langerhans cells |
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20. Describe the characteristics of melanocytes
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derived from neural crest cells
melanin produced from tyrosine and packaged into vesicles called melanosomes |
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21. What are Merkel cells?
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found in stratum basale
derived from neural crest acts as a receptor commonly found in masticatory mucosa and absent in lining mucosa |
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22. What are Langerhans cells?
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dendritic cells located in layers above thte stratum basale
derived from bone marrow precursors immunologic function: acts as antigen presenting cells |
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23. Describe the junction between epithelium and connective tissue
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wavy to increase surface area
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24. What is the name of the layer of connective tissue which is in contact with the epithelium?
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lamina propria
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25. Basal lamina is made up of two layers. What are they?
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lamina lucida
lamina densa |
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28. What are the two layers found in Lamina propria?
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Papillary layer and reticular layer
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29. What are the components of lamina propria?
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cells, fibres, blood vessels, nerves and ground substance
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30. What types of cells are found in lamina propria?
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mast cells
inflammatory cells lymphocytes fibroblasts macrophages |
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31. What are the extra cellular components found in lamina propria?
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Fibres, collagen, elastic fibres, ground substance
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33. What kind of epithelium is found in gingiva?
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parakeratinised epithelium
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34. What kind of epithelium is found in hard palate?
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orthokeratinised epithelium
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35. Where is lining mucosa found?
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ventral surface of tongue
soft palate alveolar mucosa & floor of the mouth |
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Delete
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delete
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37. Where is labial mucosa found?
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lines inner surface of the lip
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38. What kind of epithelium is found in labial mucosa?
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non-keratinised epithelium
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39. What is found in the submucosa of labial mucosa?
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mucous salivary glands
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40. What kind of epithelium is found in buccal mucosa?
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non-keratinised epithelium
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41. To which muscle does buccal mucosa attach to?
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buccinators muscle
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42. Describe the type of epithelium found in lining mucosa of ventral part of the tongue.
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non-keratinised with numerous short Connective Tissue papillae and elastic fibres
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43. Are minor salivary glands present in Lining mucosa of ventral part of the tongue?
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few are present
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44. Capillary network is found in which layer of Lining mucosa of ventral part of the tongue?
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papillary layer
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45. Is the reticular layer of lining mucosa of ventral part of the tongue vascular or avascular?
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avascular
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46. Submucosa of lining mucosa of ventral part of the tongue is ____(thin/thick), ____(regular/irregular), ____ (may/doesn’t) contain fat & small blood vessel
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thin
irregular may |
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47. Lining Mucosa - Soft palate
____ (keratinising / non-keratinising) epithelium, ____ (thin/thick), contains ____ ____ Connective tissue papillae is ____ (short/long) and ____ (thin/broad) Thick lamina propria contains many _____ (type of fibre) forming an ____ lamina Broad submucosa containing many minor ____ glands |
non-keratinising, thin, taste buds
short, broad elastic fibre, elastic mucous |
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48. Lining Mucosa - Floor of the mouth
Very thin (100mm), ____ (keratinized/non-keratinised) epithelium ____ (short/long) papillae, with ____ fibres and ____ (vascular/avascular) supply; Submucosa is ____ (thin/extensive), with ____ ____ tissue, fat & minor salivary glands |
non-keratinised
short elastic vascular extensive loose fibrous |
