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Immunology Vocabulary

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Instructions: Learn the language of the immune system, from antibodies and antigens to vaccines and the body's remarkable defense mechanisms.

  1. 1.

    What is an 'antibody'?

    A
    A protein produced by the immune system to identify and neutralize foreign substances
    B
    A vaccination ingredient
    C
    A harmful bacterium
    D
    A type of white blood cell
  2. 2.

    What is an 'antigen'?

    A
    A type of medicine
    B
    A substance that triggers an immune response, often found on the surface of pathogens
    C
    A type of vitamin
    D
    A white blood cell
  3. 3.

    What does 'immunity' mean?

    A
    The ability of an organism to resist a particular infection or toxin
    B
    Being sick frequently
    C
    A type of vaccination
    D
    The process of healing a wound
  4. 4.

    What is a 'vaccine'?

    A
    A painkiller
    B
    A type of antibiotic
    C
    A biological preparation that provides active acquired immunity to a particular disease
    D
    A vitamin supplement
  5. 5.

    What are 'lymphocytes'?

    A
    Platelets in the blood
    B
    Cells in the liver
    C
    Red blood cells
    D
    A type of white blood cell central to the immune response, including T cells and B cells
  6. 6.

    What does 'inflammation' indicate?

    A
    A type of cancer
    B
    The body's protective response to injury or infection, characterized by redness, swelling, heat, and pain
    C
    A broken bone
    D
    A vitamin deficiency
  7. 7.

    What is an 'autoimmune disease'?

    A
    A disease caused by bacteria
    B
    A disease that only affects children
    C
    A disease caused by a virus
    D
    A condition where the immune system mistakenly attacks the body's own healthy cells
  8. 8.

    What are 'T cells'?

    A
    A type of lymphocyte that plays a central role in cell-mediated immunity
    B
    Cells that carry oxygen
    C
    Nerve cells in the brain
    D
    Cells that produce insulin
  9. 9.

    What does 'allergen' mean?

    A
    A beneficial bacterium
    B
    A type of medicine
    C
    A type of food additive
    D
    A substance that causes an allergic reaction in the immune system
  10. 10.

    What is 'immunodeficiency'?

    A
    A state in which the immune system's ability to fight infection is compromised or absent
    B
    Immunity to all diseases
    C
    A type of allergy
    D
    An overactive immune system
  11. 11.

    What is the 'lymphatic system'?

    A
    The digestive system
    B
    The respiratory system
    C
    The nervous system
    D
    A network of tissues, organs, and vessels that helps maintain fluid balance and supports immune function
  12. 12.

    What does 'pathogenesis' describe?

    A
    The study of healthy cells
    B
    The cure for a disease
    C
    The process by which a disease develops in the body
    D
    The prevention of infection
  13. 13.

    What is 'herd immunity'?

    A
    Immunity found only in animals
    B
    A form of indirect protection that occurs when a large percentage of a population becomes immune
    C
    Immunity that lasts forever
    D
    Immunity gained from eating certain foods
  14. 14.

    What are 'cytokines'?

    A
    A type of blood vessel
    B
    Red blood cells
    C
    Small proteins released by cells that have specific effects on cell communication and immune regulation
    D
    Bone marrow cells
  15. 15.

    What is 'anaphylaxis'?

    A
    A type of infection
    B
    A severe, potentially life-threatening allergic reaction that occurs rapidly
    C
    A mild skin rash
    D
    A gradual onset of allergy symptoms

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