natural killer cell

Inflammatory response

epithelial cells

phagocytes

phagocytosis

immune surveillance????

clonal selection theory

lymphocytes

foreign cells

pathogens
phagocytes

immunological memory

t-lymphocytes

what else do t-lymphocytes do?

b-lymphocytes (part 1)

b-lymphocytes (part 2)

b-lymphocytes (part 3)

immune system problems-auto immune disease & allergy