Anatomy
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Epithe | Laid on; Covering. The lining covering and glandular tissue of the body
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| P.A.F.S | Protection: Skin, cilia on trachea
Absorption: Lines stomach, small intestine
Filtration: Kidneys, capillaries
Secretion: Glands that produce oil, sweat, enzymes
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| Desmosomes | Points in the cells that bound them together
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| Apical | An unattached surface or edge of the tissue. Is exposed to the exterior of the body, or the cavity of an internal organ.
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| Basement Membrane | The lower surface of the Epithelium that it rests on.
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| Avascular | No blood supply. I.e. Epithelial tissues require diffusion from a capillary bed below or around it because it is avascular.
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| Simple | One Layer of cells
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| Stratified | More than one layer of cells
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| Pseudostratified | One layer, but looks like more. Falsely layered
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| Squamous | Flat, squished cells. Look like fish scales or floor tiles. Found in the lung air sacs and serous membranes (slick membranes that line body cavities). Easy to diffuse gasses and nutrients.
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| Cuboidal | Cube shaped like dice. Rests on a basement membrane. Found in glands and their ducts(pancreas, salivary glands.) Also found in the walls of the Kidneys and Surface of the Ovaries.
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| Columnar | Shaped like Columns. Has goblet cells that produce mucus, found throughout the digestive tract; help move food. Apical surface covered w/ microvilli, increases SA for absorption and secretion.
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| Pseudostratified columnar | Unevenly spaced nuclei and cell shape give the appearance of > 1 cell layer, but all cells are connected to B.M. Line the respiratory tract- contain cilia to trap dust, bacteria, etc. Line Fallopian tubes; move egg to uterus.
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