Ch 5 Integumentary Sys

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FatNerdd
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136594
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Ch 5 Integumentary Sys
Updated:
2012-02-21 02:43:48
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integumentary biology physiology anatomy physioanatomy
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Integumentary system
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  1. Langerhans Cells (aka Epidermal Dendritic Cells)

    1.) Develop From?
    2.) Fxn?
    3.) Loc?
    4.) Role?
    • 1.) Arise from red bone marrow and migrate to the epidermis.
    • 2.) Partic. in immune responses mounted against microbes that invade the skin, easily damaged by UV light.
    • 3.) Migrate to the epid. from red bone marrow
    • 4.) Role in the immune response is to help other cells of the IS recognize an invading microbe and destroy it.
  2. Merkel Cells

    1.) Develop From?
    2.) Fxn?
    3.) Loc?
    4.) Role?
    • 1.) Experiments in mammals demonstrate and epidermal origin.
    • 2.) Merkel Cells and their assoc. Merkel Discs detect touch sensations.
    • 3.)Located in the deeest layer of the epid.
    • 4.)Contact the flattened process of a sensory neuron called Merkel (tactile) Disc.
  3. Epidermal Strata of Thin Skin in Order of Deep to Superficial
    • 1.) Stratum Basale
    • 2.) Stratum Spinosum
    • 3.) Stratum Granulosum
    • 4.) Thin Stratum Corneum
  4. Epidermal Strata of Thick Skin in Order of Deep to Superficial
    • 1.) S. Basale
    • 2.) S. Spinosum
    • 3.) S. Granulosum
    • 4.) S. Lucidum
    • 5.) Thick S. Corneum
  5. Stratum Basale

    1.) Loc?
    2.) Fxn?
    3.) Role?
    4.) Other Char?
    • 1.) Deepest layer of the epidermis. Composed of a single row of cuboidal or columnar keratinocytes.
    • 2.) Some cells are stem cells to continually produce keratinocytes.
    • 3.)
    • 4.) Nuclei of keratinocytes in SB are large, their cytoplasm contains many ribosomes, a small Golgi complex, a few mintochondria, and some rough endoplasmic reticulum.

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