a&p 4 ET

Card Set Information

Author:
standout13
ID:
176166
Filename:
a&p 4 ET
Updated:
2012-10-07 23:44:04
Tags:
histology epithelial
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Description:
carcel
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  1. groups of cells similar in structure & function
    tissues
  2. covering
    epithelial
  3. support
    connective
  4. outer layer of skin
    covers walls & organs of ventral body cavity
    covering & lining epithelial
  5. glands & ducts
    glandular epithelial
  6. form boundary functions
    • protection
    • absorption
    • filtration
    • excretion
    • secretion
    • sensory reception
  7. composed almost entirely of cells
    cellularity
  8. form continuous sheets held together by tight junctions & desmosomes
    special contacts
  9. apical & basal surfaces
    polarity
  10. free surface
    exposed to body or cavity
    some smooth
    dense=brush border
    apical
  11. attached to underlying surface
    thin supporting sheet (basal lamina)
    glycoproteins
    basal
  12. increase surface area
    microvilli
  13. absorbs & secretes
    microvilli
  14. propel substances along free surface
    cilia
  15. ex: reticular and basal lamina (collagen protein fibers)
    supported by connective tissue
  16. contains no blood vessels but supplied by nerve fibers
    avascular but innervated
  17. rapidly replaces lost cells by cell division
    regenerative
  18. fn- diffusion & filtration
    provides slick, friction-reducing liningĀ 
    simple squamous
  19. inner covering
    epithelial
  20. middle covering
    mesothelium
  21. fn-absorption or secretion
    simple columnar
  22. fn- secretion or absorption
    simple cuboidal
  23. w/ different heights
    pseudostratified columnar
  24. fn- secretion & propulsion of mucus
    pseudostratified columnar
  25. fn- protection of underlying areas subjected to abrasion
    stratified squamous
  26. stretches to permit distension of the urinary bladder
    transitional
  27. one or more cells that makes & secretes an aqueous fluid
    glands
  28. crine
    secrete
  29. ductless glands that produce hormones to be used internally
    endocrine
  30. secretes products onto body surfaces or into body cavities
    exocrine
  31. endocrine secretions include:
    amino acids, proteins, glycoproteins & steriods
  32. endocrine products---->
    secreted into intracellular spaces usually picked up by capillaries to be distributed to the target organs by the circulatory system

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