GLOSSARY for credit 1

Question 1

Hyperplasia:

Answer 1

• increased cell numbers in response to hormones and growth factors
• (reversible)
• occurs in tissues whose cells are able to divide or contain abundant tissue stem cells

Question 2

Hypertrophy:

Answer 2

increased cell and organ size, often in response to increased workload

• induced by growth factors produced in response to mechanical stress or other stimuli
• occurs in tissues incapable of cell devision