Tissue Modification (Aging and Damage)

Tissue Modification

Any change in the structure, size, or function of a tissue, often in response to growth, injury, or environmental factors.

Metaplasia

Change in a mature cell type due to stress or environmental factors (e.g., airway cells in smokers).

Hypertrophy

An increase in cell size that results in larger tissue, such as enlarged muscles.

Hyperplasia

An increase in cell number that leads to tissue growth.

Neoplasia

Abnormal, uncontrolled cell growth, often forming a tumor.

Atrophy

Decrease in tissue size due to cell loss or shrinkage (e.g., unused muscle).

Necrosis

Irreversible cell and tissue death caused by severe injury.