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15 Cards in this Set
- Front
- Back
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histology
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study of cells/tissue/organs
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magnification
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ratio of image size to object size
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resolution
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smallest distance a which 2 very close points can be distinguished from each other
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transillumination
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interaction of an energy source with cells/tissues components permitting the visualization of the cells/tissue
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light microscopy
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energy: photons of light
lens: optical |
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electron microscopy
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energy: electrons
lens: electromagnets |
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Transmission electron microscopy
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look inside the cell
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Scanning electron microscopy
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look at surface of structure
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Hematoxylin
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basic stain, interacts with acidic cell components, turns them blue/purple
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Eosin
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acidic stain, interacts with basic cell components, turns them pink/red/orange
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RBC length
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8 microns
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Glycocalyx
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carbohydrates attached to outer leaflet membrane proteins or lipids
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Exocytosis
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Active, secretion, release of cellular products, secretory vesicles from golgi
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Receptor-mediated endocytosis
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active, absorption, ligand binds to receptors in plasma membrane which invaginates to form endocytotic vesicles (endosome) which fuse with lysosomes
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Phagocytosis
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active, large particles engulfed by cell, psuedopodia, vesicles are phagosomes which fuse with lysosomes, often performed by macrophages
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