Match each term with its definition.
Tissues and organs that protect against germs
Itchy red bumps
Narrowing of airways in the lungs
Full-body swelling reaction
Substance that sets off allergic reactions
Anaphylaxis
Hives
Immune system
Allergen
Asthma attack
Hives: itchy red bumps Asthma attack: narrowing of airways in the lungs. Allergen: substance that sets off allergic reactions. Anaphylaxis: full body swelling reaction. Immune system: tissues and organs that protect against germs.