Key Terms in Immunity and Health

AIDS (acquired immune deficiency syndrome)

allergen

allergy

anaphylactic shock

antibody

antigen

antigen-presenting cell

antigen receptor

antiseptic

apoptosis

autoimmunity

B cell

basophil

cilia

clonal selection

complement protein

cytokine

cytotoxic T cell

dendritic cell

effector cell

fever

helper T cell

histamine

HIV (human immunodeficiency virus)

immune system

immunity

inflammatory response

integumentary system

interferon

lymphocyte

lysozyme

macrophage

mast cell

memory cell

multiple sclerosis (MS)

natural killer (NK) cell

neutrophil

non-specific immunity

pathogen

physical barriers (immune system)

plasma cell

primary response

pus

secondary response

specific immunity

T cell

vaccine

white blood cell

ABOUT THE CHAPTER OPENING PHOTO

An electron micrograph of a breast tumor. The purple regions show areas of cells dying through apoptosis, while the blue regions represent healthy cells.

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