Disturbances of Growth

Question 1

decrease in size (disuse atrophy) seen most commonly in muscle

Answer 1

atrophy

Question 2

increase in size (muscle exercise)

Answer 2

hypertrophy

Question 3

increase in number of cells (pregnant uterus, goiter)

Answer 3

hyperplasia

Question 4

changes from one cell type to another e.g. pseudostratified cilitated columnar epithelium (PCCE) changing into stratified squamous in lungs of a smoker

Answer 4

metaplasia

Question 5

change in size, shape or function of a cell. precancerous, but last stage that can reverse to normal

Answer 5

dysplasia

Question 6

complete disorganization of a cell (cancer) e.g. squamous cell carcinoma

Answer 6

anaplasia