√Stable tissues Divide infrequently (usually in GO phase) o i.e.,hepatocytes,astrocytes,smooth muscle cells May be stimulated (GF)to enter the cell cycle,and undergo hyperplasia or hypertrophy as an adaptation  Stable tissues  Divide infrequently (usually in G0 phase)  i.e., hepatocytes, astrocytes, smooth muscle cells  May be stimulated (GF) to enter the cell cycle, and undergo hyperplasia or hypertrophy as an adaptation