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7 Cards in this Set
- Front
- Back
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Define atrophy
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A decrease in the size of cells, resulting in a reduced tissue mass.
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What are some common causes of atrophy?
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reduced use of the tissue, insufficient nutrition, decreased neurological or hormonal stimulation, & aging
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Define hypertrophy
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An increase in the size of individual cells, resulting in an enlarged tissue mass.
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What are two common causes of hypertrophy?
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1) additional work by the tissue
2) excessive hormonal stimulation |
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Define hyperplasia
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An increased number of cells resulting in an enlarged tissue mass.
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Name two general circumstances in which hyperplasia occurs.
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1) It may be a compensatory mechanism to meet increase demands. 2) It may be pathologic when there is a hormonal imbalance.
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Define metaplasia.
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Occurs when one mature cell type is replace by a different cell type
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