membranes

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Anonymous
ID:
99477
Filename:
membranes
Updated:
2011-09-02 10:26:50
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membranes
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membranes
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  1. two characteristics of membranes
    • 1) at least two types of tissue make up membranes
    • 2) membranes produce a fluid but the fluid isn't always present
  2. epithelium is characterized on?
    • number of layers present
    • many are found so close together that they form a layer
  3. simple?
    one layer of epithelium
  4. stratified?
    multiple layers of epithelium (at least 2)
  5. two types of tissue that form epithelium
    • 1) connective tissue
    • 2) epithelium
  6. Cutaneous Membrane
    • aka the skin, stratified squamous cells, dense irregular connective tissue is the deep dermis or hypodermis
    • skin is the largest organ in the body
  7. Mucous Membrane
    • lines the body cavities that are open to the exterior
    • secrete mucin to lubricate and to protect
    • prevent dessication of tissues
  8. 7 external openings in Females
    • 1) mouth
    • 2) eyes
    • 3) ears
    • 4) nose
    • 5) urethra
    • 6) anus
    • 7) vagina
  9. serous membranes
    • made of simple squamous epithelium
    • line ventral body cavities not open to the exterior
    • lines organs
    • f: produce a thin, watery fluid to prevent friction and to prevent two layers from sticking together
  10. two layers of serous membrane
    • 1) visceral layer: lines the organ "touching the fist"
    • 2) pleura: lines the wall of the cavity
  11. examples of serous membranes
    • 1) peritoneum
    • 2) pericardium
    • 3) pleura
    • 4) synovial joints
  12. Synovial Joints
    special type of serous membrane, that produces a semi-thick liquid to reduce friction in joints (thinner than mucus, thicker than serous)
  13. Potential Space
    • parietal and viscera exist as this (very very close to one another) through surgery and disease this potential space can be opened up to a true or real space
    • ("shirt against arm" can become "gap between arm and shirt")

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