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Introduction to General Pathology (view source)
Revision as of 07:09, 7 September 2016
, 07:09, 7 September 2016Reverted edits by DrNdaba (talk) to last revision by Bara
There are several [[Cell Growth Disorders|changes in the size of cells]] and their respective organs that are commonly seen in pathological states:
There are several [[Cell Growth Disorders|changes in the size of cells]] and their respective organs that are commonly seen in pathological states:
*'''Atrophy''' is a decrease in the size of the cells and respective organ(s), occurring after the organ has reached it's normal size.
*'''Atrophy''' is a decrease in the size of the cells and respective organ(s), occurring after the organ has reached it's normal size.
*'''Hypertrophy''' is an increase in the number of an organ due to an increase in size of the individual cells.
*'''Hypertrophy''' is an increase in the size of an organ due to an increase in size of the individual cells.
*'''Hypoplasia''' is a reduction in the number of cells and tissues due to a failure to grow to the normal size which ranges from mild hypoplasia to almost complete absence. Almost complete absence is also called vestigial or rudimentary.
*'''Hypoplasia''' is a reduction in the size of cells and tissues due to a failure to grow to the normal size which ranges from mild hypoplasia to almost complete absence. Almost complete absence is also called vestigial or rudimentary.
*'''Aplasia''' and '''agensis''' refer to complete absence of tissue.
*'''Aplasia''' and '''agensis''' refer to complete absence of tissue.
*'''Hyperplasia''' is an increase in the size of an organ due to an increase in the numbers of cells present within it. Hypertrophy and hyperplasia may occur concurrently.
*'''Hyperplasia''' is an increase in the size of an organ due to an increase in the numbers of cells present within it. Hypertrophy and hyperplasia may occur concurrently.