| Abnormality |
Definition |
| Aplasia | a developmental failure resulting in the absence of an organ or tissue |
| Hypoplasia | an incomplete development or underdevelopment of an organ or tissue, which is usually the result of a decrease in the number of cells |
| Atrophy | a wasting or diminution of size or activity of a part of the body, usually the result of an abnormal decrease in cell size |
| Hypertrophy | an increase in the size of an organ caused by an increase in the size of the cells rather than the number of cells |
| Hyperplasia | an increase in the number of cells of a body part |
| Dysplasia | any abnormal development of tissues or organs |
| Anaplasia | a change in the structure or orientation of cells characterized by the production of abnormal, undifferentiated cells |
Cardio Block2anatomy
