TISSUE REVIEW - connective tissues Review 2...TISSUE REVIEW - connective tissues •The following...
Transcript of TISSUE REVIEW - connective tissues Review 2...TISSUE REVIEW - connective tissues •The following...
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TISSUE REVIEW - connective tissues
• The following slides are from your text or other sources.
This will allow you to study tissues at home.
• You are also responsible for tissue slides that we view with
the microscope in class.
• Always study the Histology Atlas available online from the
textbook’s website – PAL; or your PAL CD
• know:
– name of the tissue
– the cells ; the matrix ; other structures
– the function of the tissue
– where it is found
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procedure to identify connective tissues
• if it’s connective :
• is the matrix loose or dense arrangement of fibers?
– loose probably areolar
– loose, with many cells reticular
– large cells with nucleus at edge adipose
– under epithelial tissue areolar
– dense, parallel fibers dense regular (fibrous)
– dense, dark, parallel “ (elastic)
– dense, not parallel dense irregular c.t.
• what are the cells called?
• what function matches this structure?
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• other connective tissues:
– chondrocytes in lacuna cartilage
• smooth matrix hyaline cartilage
• dark lines in matrix elastic cartilage
• cells in rows fibrocartilage
– osteons compact bone
– blood cells blood
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areolar c.t.
mast cell fibroblast
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fibroblast Mast cell
areolar ct
high power
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Areolar connective tissue,
Mast cell
Fibroblast nuclei
Space occupied by
ground substance
Elastic fibers
Collagen fibers
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tissue?
functions?
fibers?
cells?
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If it’s under epithelia, it’s probably areolar c.t.
in low power, areolar looks like this.
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Adipose connective tissue
This is not
an empty
space. THe
entire
cytoplasm
is filled
with
fats/lipids
Nucleus
Capillary Adipocyte
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adipose ct
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adipose
in skin
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reticular c.t. dark fibers + many cells
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dense regular c.t.; found where?
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elastic c.t. elastin fibers always stain dark
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Dense fibrous irregular c.t.
Fibroblast
nuclei
Dense fibrous irregular
connective tissue
Collagen
fibers
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dermis
dense irregular ct
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hyaline cartilage chondrocytes in lacuna
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hyaline cartilage
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Elastic Cartilage
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osteon = haversian system
haversian canal
lacuna w/osteocyte
lamella = rings of matrix
compact bone
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erythrocytes
leukocytes
thrombocytes
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We are built with several tissues in the same organ, area:
dense irregular c.t. adipose c.t. gland
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trachea :
ciliated epithelium
areolar c.t.
glands
hyaline cartilage
fibrous ct
adipose
We are built in layers of tissues –
working together to perform the functions of an organ.