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Questions and Answers
Which of the following is a cause of atrophy?
Which of the following is a cause of atrophy?
What term describes a reduction in the size of an organ or tissue resulting from a decrease in cell size?
What term describes a reduction in the size of an organ or tissue resulting from a decrease in cell size?
What is the main characteristic of hypertrophy?
What is the main characteristic of hypertrophy?
Which of the following is an example of physiologic hypertrophy?
Which of the following is an example of physiologic hypertrophy?
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Hyperplasia is defined as an increase in the __________ of cells in an organ or tissue.
Hyperplasia is defined as an increase in the __________ of cells in an organ or tissue.
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Which of the following is a pathologic cause of hyperplasia?
Which of the following is a pathologic cause of hyperplasia?
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Barrett's esophagus is an example of metaplasia in which the lower esophageal epithelium transforms from?
Barrett's esophagus is an example of metaplasia in which the lower esophageal epithelium transforms from?
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Mesenchymal metaplasia is characterized by the transformation of __________ into osteoblasts or chondroblasts.
Mesenchymal metaplasia is characterized by the transformation of __________ into osteoblasts or chondroblasts.
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Which of the following is NOT a histologic change associated with atrophy?
Which of the following is NOT a histologic change associated with atrophy?
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Which form of adaptation involves an increase in the size of cells and the organ?
Which form of adaptation involves an increase in the size of cells and the organ?
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Which of the following is a pathologic cause of hypertrophy?
Which of the following is a pathologic cause of hypertrophy?
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Which type of metaplasia is reversible?
Which type of metaplasia is reversible?
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Study Notes
Cellular Adaptations
- Atrophy is a reduction in the size of an organ or tissue resulting from a decrease in cell size.
Hypertrophy
- Characterized by an increase in the size of cells and the organ.
- Example of physiologic hypertrophy: muscle hypertrophy in athletes.
- Pathologic cause of hypertrophy: high blood pressure (hypertension) leading to cardiac hypertrophy.
Hyperplasia
- Defined as an increase in the number of cells in an organ or tissue.
- Pathologic cause of hyperplasia: endometrial hyperplasia caused by prolonged exposure to estrogen.
Metaplasia
- Barrett's esophagus is an example of metaplasia, where the lower esophageal epithelium transforms from squamous epithelium to columnar epithelium.
- Mesenchymal metaplasia is characterized by the transformation of fibroblasts into osteoblasts or chondroblasts.
- Reversible type of metaplasia: squamous metaplasia.
Atrophy
- NOT a histologic change associated with atrophy: increase in the number of cells.
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Description
Test your knowledge of atrophy, hypertrophy, and cell changes with this quiz. Answer questions about the causes and characteristics of these physiological processes.
