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5 Cards in this Set
- Front
- Back
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Hyperplasia
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-increase in the number of cells resulting from an increased rate of cellular division.
-Hyperplasia as a response to injury occurs when the injury has been severe and prolonged enough to have caused cell death |
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Dysplasia
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-refers to abnormal changes in the size, shape, and organization of mature cells
-Dysplasia is not considered a true adaptive process but is related to hyperplasia and is often called atypical hyperplasia |
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Metaplasia
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- is the reversible replacement of one mature cell by another, sometimes less differentiated, cell type. The best example of metaplasia is replacement of normal columnar ciliated epithelial cells of the bronchial (airway) lining by stratified squamous epithelial cells
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CELLULAR INJURY
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Cellular injury occurs if the cell is unable to maintain homeostasis—a normal or adaptive steady state—in the face of injurious stimuli.
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Cell Injury - types
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The three common forms of cell injury are (1) hypoxic injury, (2) reactive oxygen species and free radical–induced injury, and (3) chemical injury.
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