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Hypertrophy

From Wikipedia, the free encyclopedia
Hypertrophy
Hypertrophy results from an increase in cell size, whereashyperplasiastems from an increase in cell number.

Hypertrophyis the increase in the volume of an organ or tissue due to the enlargement of its componentcells.[1]It is distinguished fromhyperplasia,in which the cells remain approximately the same size but increase in number.[2]Although hypertrophy and hyperplasia are two distinct processes, they frequently occur together, such as in the case of thehormonallyinduced proliferation and enlargement of the cells of theuterusduringpregnancy.

Eccentric hypertrophyis a type of hypertrophy where the walls and chamber of a hollow organ undergo growth in which the overall size and volume are enlarged. It is applied especially to theleft ventricleof heart.[3]Sarcomeresare added in series, as for example indilated cardiomyopathy(in contrast tohypertrophic cardiomyopathy,a type ofconcentric hypertrophy,where sarcomeres are added in parallel).

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See also

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References

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  1. ^Hernandez, Richard; Kravitz, Len."Skeletal muscle hypertrophy".www.unm.edu.
  2. ^"Hyperplasia: MedlinePlus Medical Encyclopedia".medlineplus.gov.Retrieved2023-02-19.
  3. ^Kusumoto, F. M. (2004),Cardiovascular Pathophysiology,Hayes Barton Press, pp. 20–22,ISBN978-1-59377-189-8
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