cellular adaptations gameOnline version patho quiz by Rebecca Shepherd 1 Atrophy 2 hypertrophy 3 hyperplasia 4 metaplasia 5 dysplasia decrease in workload smaller size cell example: arm shrinks when in cast increase in cells size and usually tissue mass results from increased workload seem mostly in cardiac and skeletal muscle example: ventricular enlargement due to hypertension increase in number of cells in an organ or tissue only occurs in cells that are capable of mitosis example: uterine enlargement during pregnancy example: regeneration of the liver after partial removal reversible change with one adult cell type replaced by another usually occurs in response to chronic irritation or inflammation example: smokers airways change to stratified squamous rather than ciliated columnar when the irritant is removed, the cells return to normal deranged cell growth due to chronic irritation or inflammation this adapatation is marked by degrees and occurs most frequently in the uterus or respiratory tract is a precursor to cancer, but does not always lead to cancer
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