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10 Cards in this Set
- Front
- Back
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What can altered cellular and tissue biology result from?
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(1) adaptation
(2) injury (3) neoplasia (4) aging (5) death |
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What does adaptation occur in response to?
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both normal, or physiologic, conditions and adverse, or pathologic, conditions
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What is injury classified as?
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(1) chemical
(2) hypoxic (lack of sufficient oxygen) (3) free radical (4) intentional (5) unintentional (6) immunologic (7) infection (8) inflammatory |
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How is cellular death confirmed?
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by structural changes seen when cells are stained and examined under a microscope
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What does cellular aging cause?
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structural and functional changes that eventually may lead to cellular death or a decreased capacity to recover from injury.
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Why do cells adapt to their environment?
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to escape and protect themselves from injury
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What are the most significant adaptive changes in cells?
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(1) atrophy (decrease in cell size)
(2) hypertrophy (increase in cell size) (3) hyperplasia (increase in cell number) (4) metaplasia (reversible replacement of one mature cell type by another less mature cell type) |
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Is dysplasia (deranged cellular growth) considered a true cellular adaptation?
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no, it is considered an atypical hyperplasia
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What is atrophy?
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a decrease or shrinkage in cellular size
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What happens if atrophy occurs in a sufficient number of an organ's cells?
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the entire organ shrinks and becomes atrophic
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