Types of Tissues and facts about tissues
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| Tissue: | Collection of cells
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| Biopsy and its purpose: | Tissue sample, purpose is to look for an insult to tissue
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| Cellular Adaptation: | Increase or decrease in cell numbers
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| Hyperplasia: | Increase in NUMBER of cells
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| Does hyperplasia imply a tumor? | It may, but not in all cases
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| Hypertrophy: | Cell adaptation that leads to an INCREASE IN SIZE
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| Dysplasia: | Change in shape of cell
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| Metaplasia: | Cell adaptation to chronic insult
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| Ex of metaplasia: And what's the BODY's adaptation to it? | Smokers losing cilia on resp. tract, so they cough to clear resp throat
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| Where is the epithilum always located? | Above connective tissue
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| Atrophy: | REDUCTION in NUMBER of cells
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| What is the basement membrane? | Made of connective tissue and basal surface
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| Basal Surface: | Bottom part of epithilium, holds basement membrane
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| how is simple epithilium used? | Allows for diffisuion, not as many cells packed together
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| Stratified epithilium: | Contains a barrier to protect itself against foreign stuff
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| What is a primary example of stratified epithilium? | Skin
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| Intercellular matrix: | space b/w cells in epithlium
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| What is the relationship between the Intercell matrix and the number of cells? | As cells increase, ICM decreases
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| What is the apicol surface? | Cilia and microvili, front surface
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| Cell Junction: | How epithilium connect by sharing of plasma membrane
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| Example of Pseudo stratified: | Esophogous lined by these tissue types
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| What allows aions to connect? | Gap junctions
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| How does one ID epithilium? | Single or multiple layer, cell shape
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| What are the possible cell shapes? | Squamous, cuboid, colomner (like column)
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| Transitional epithilium: | In urinary organs, so when bladder is full, it looks like squomous cells, but when it is emplty, apocal, inflated cells
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| Apical: | Faces outside or tube
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| Glanduler epithilium: | Will manufacture something; DO NOT COVER
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| Example of glandular epithilium: | Hormone
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| How does this something get out of the cell? | Two ways, exocrine or endocrine
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| Exocrine: | duct out
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| Endocrine: | Out through blood
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| Connective tissue: | Cells suspended in a matrix
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| Matrix: | made of ground substance and fibers
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| What are teh three types of fibers? | Riticular, elastic, cologen
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| Cologen: | Protein fiber
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| Reticular: | net-like
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| What are the five types of connective tissue? | Loose, dense, cartilidge, bone, blood
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| Loose: | Random fiber arrangment
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| Fiberblast: | produces ground substance and fiber cells
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| How is swelling caused? | Fluid increase
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| redness caused? | blood increase
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| What is another word for loose tissue? | aeroortal
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| What are the two types of dense tissue? | Regular dense, irregular dense
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| Example of irregular dense: | connective tissue on which skin lies
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| Cartilidge: | Chondrocytes, suspend in a gell like matrix
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| Bone: | Osteocyted: Syspend in a rigid, hard matrix like fibers and mineral salts
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| Blood: | Red and white blood cells: suspend in plasma
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