sgu vet histo 1 set2-1

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Author:
onaktan
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6305
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sgu vet histo 1 set2-1
Updated:
2010-02-07 21:06:58
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sgu vet histo1
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epithelium
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  1. what consists of sheets of aggregated cells of similar type that cover or line the external and internal surfaces of the body
    epithelium
  2. what does epithelium consist of (2)
    • sheets of aggregated cells of similar type
    • cover or line external and internal surfaces of the body
  3. what are the layers that make up the basement membrane (2)
    • basal lamina = lamina lucida + lamina densa
    • reticular lamina
  4. basal lamina and reticular lamina make up what
    basement membrane
  5. what makes up the basal lamina (2)
    • lamina lucida
    • lamina densa
  6. lamina lucida and lamina densa make up what
    basal lamina
  7. how does one demonstrate epithelium that's resting on the basement membrane (2)
    • PAS technique
    • silver salt staining
  8. what can be demonstrated with PAS technique or silver salt staining
    epithelium and the basement membrane it sits on
  9. where do epithelium rest on
    basement membrane
  10. what rests on the basement membrane
    epithelium
  11. what is a low density, clear area next to the epithelium
    lamina lucida
  12. how is the lamina lucida look and where is it in relation to epithelium cells (2)
    • a low density clear area
    • area closest to the epithelium
  13. what is lamina lucida and lamina densa composed mainly of (2)
    • proteoglycans
    • special type of collagen
  14. what is the electron-dense part of the basal lamina
    lamina densa
  15. what is synthesized by the epithelium (2)
    • lamina lucida
    • lamina densa
    • basal lamina
  16. where is the basal lamina (lamina lucida and lamina densa) synthesized
    epithelium
  17. what is below the basal lamina
    reticular lamina
  18. what is another name for subbasal lamina
    reticular lamina
  19. what is another name for reticular lamina
    subbasal lamina
  20. what connects the lamina densa to teh subepithelial connective tissue
    subbasal lamina (reticular lamina)
  21. what is the subbasal liamina composed of
    reticular fibers
  22. what part of the basement membrane is composed of reticular fibers
    subbasal lamina or reticular lamina
  23. what does the subbasal lamina connect (2)
    • lamina densa to
    • subepithelial connective tissue
  24. what is the functions of epithelium tissue (4)
    • protection
    • absorption
    • secretion
    • diffusion
  25. what is the classification of epithelium based on (2)
    • number of layers present
    • shape of the cells
  26. the number of layers present and shape of the cells do what to epithelium cells
    it classifies them
  27. what do simple epithelium look like
    single layer of cells resting on the basement membrane
  28. what is a single layer of cells resting on the basement membrane classified as
    simple epithelium
  29. what is 2 or more layers of cells with only the bgasal cell layer resting on the basement membrane called
    stratified epithelium
  30. how do stratified epithelium look
    2 or more layers of cells with only the basal cell alyer resting on the basement membrane
  31. what are the shape types of epithelium cells (3)
    • squamous
    • cuboidal
    • columnar
  32. what are the types of simple epithelium (3)
    • simple squamous epithelium
    • simple cuboidal epithelium
    • simple columnar epithelium
  33. what is a single layer of thin, flat and scale-like cells
    simple squamous epithelium
  34. what simple epithelium have a spherical or oval nucleus that gives a slightly elevated (bulging) appearence
    simple squamous epithelium
  35. where can simple squamous epithelium found (4)
    • blood vessels
    • pleural and peritoneal cavities
    • pulmonary alveoli
    • glomerular capsule
  36. what type of epithelium cells are found in blood vessels
    simple squamous epithelium
  37. what type of epithelium cells are found in pleural and peritoneal cavities
    simple squamous epithelium
  38. what type of epithelium cells are found in pulmonary alveoli
    simple squamous epithelium
  39. what type of epithelium cells are found in glomerular capsule
    simple squamous epithelium
  40. what is a single layer of cells with centrally placed nucleus
    simple cuboidal epithelium
  41. where can simple cuboidal epithelium be found (2)
    • thyroid gland
    • collecting ducts of the kidney
  42. what type of epithelium can be found in the thyroid gland and the collecting ducts of the kidney
    simple cuboidal epithelium
  43. how do simple cuboidal epithelium look
    a single layer of cuboidal cells with centrally placed nucleus
  44. what consists of tall, narrow cells
    simple columnar epithelium
  45. what has their nucleus as oval and located near the base of the cell
    simple columnar epithelium
  46. how do simple columnar epithelium look
    tall, narrow cells with oval nucleus located near the base fo the cell
  47. where can simple columnar epithelium be found (3)
    • stomach
    • intestine
    • gall bladder
  48. what cells can be found lining the stomach, intestine and gall bladder
    simple columnar epithelium
  49. what are composed of a single layer of cells, but due to different cell shape and nuclei locations, it looks like stratified epithelium
    pseudostratified columnar epithelium
  50. who do pseudostratified columnar epithelium look like
    is really a single layer of cells, but because of the nucleus being at different levels they look statified
  51. where can pseudostratified columnar epithelium found
    respritory system - trachea and bronchi (ciliated form)
  52. what type of epithelium can be found in the trachea and bronchi
    pseudostratified columnar epithelium
  53. how are stratified epithelium named
    based on top layer of cells
  54. where can stratified squamous epithelium be found (2)
    • skin (keratinized form)
    • cornea (non-keratinized)
  55. what type of epithelium cell is found in skin
    stratified squamous epithelium
  56. what type of epithelium cell is found on the cornea
    stratified squamous epithelium
  57. where can stratified cuboidal epithelium be found
    lining the excretory duct of glands
  58. what type of epithelium cell is found lining the excretory duct of glands
    stratified cuboidal epithelium
  59. what type of epithelium cells usually do not exceed more then 3 rows
    stratified cuboidal epithelium
  60. stratified cuboidal epithelium can have how many rows of cells
    2-3 rows (3 max)
  61. what type of cells line small ducts
    stratified cuboidal epithelium
  62. what type of cells line large ducts
    stratified columnar epithelium
  63. where can you find stratified columnar epithelium (3)
    • saliva glands
    • parotid ducts
    • mandibular gland ducts
  64. what cells are found on saliva glands, parotid and mandibular gland ducts
    stratified columnar epithelium
  65. what lines certain hollow organs and is capable of considerable distention
    transitional epithelium
  66. what is transitional epithelium's capable of that other epithelium isn't designed for
    considerable distention
  67. where do you find transitional epithelium (2)
    • urinary bladder
    • urethra
  68. what cells line the urinary bladder and urethra
    transitional epithelium
  69. what is usually mistaken for stratified cuboinal epithelium
    transitional epithelium
  70. what has a top layer that's very cuboinal shape but non-distinctive basement cells
    transitional epithelium
  71. when relaxed, what do the superficial cells of transitional epithelium present (2)
    • dome-shaped
    • bulge into the lumen
  72. when streched how do transitional epithelium present
    cells reduced to only a few layers and are flattened

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