definitions for all topics

Question 1

proliferation

Answer 1

cell division and reproduction

Question 2

mitosis

Answer 2

development of 2 identical daughter cells

Question 3

differentiation

Answer 3

cells becoming specialized in terms of function, cell type, structure

Question 4

gene expression

Answer 4

a gene being used

Question 5

atrophy

Answer 5

decreased demand on a cell so it shrinks

Question 6

hypertrophy

Answer 6

occurs when the cell increases in size in attempt to meet work demand

Question 7

hyperplasia

Answer 7

increase in the number of cells in organ or tissue

Question 8

dysplasia

Answer 8

final cellular adaptation, cells mutate into cells of different shape and size, can be REVERSIBLE

Question 9

apoptosis

Answer 9

when a cell becomes injured and dies

Question 10

ischemia

Answer 10

lack of oxygen or blood flow

Question 11

lymph

Answer 11

watery fluid that flows through lymphatic system

Question 12

metaplasia

Answer 12

1 adult cell is replaced by another cell type

Question 13

lymphatic vessel

Answer 13

helps reabsorb fluid

Question 14

lymph node

Answer 14

monitors and cleanses lymph

Question 15

lymphoid organs

Answer 15

where lymphocytes are produced & sometimes grow