Anatomy & Physiology: The Immune System

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  1. A "foreign" molecule which can invoke the immune response is called a(n)
  1. hapten.
  2. antigen.
  3. antibody.
  4. immunoglobulin.
  1. Active artificially acquired immunity is a result of
  1. contact with a pathogen.
  2. vaccination.
  3. antibodies passed on from mother to fetus through the placenta.
  4. antibodies passed on from mother to baby through breast milk.
  5. injection of an immune serum.
  1. Antibodies are produced in cells called
  1. memory cells.
  2. plasma cells.
  3. natural killer cells.
  4. helper T-cells.
  1. Cytotoxic T cells kill target cells
  1. by secreting antibodies.
  2. through insertion of perforins into the target's membrane.
  3. through injection of tumor necrosis factor.
  4. by phagocytosis.
  1. Lymphocytes that develop immunocompetence in the thymus are
  1. B lymphocytes.
  2. Phagocytes.
  3. T lymphocytes.
  1. Saliva and lacrimal fluids contain this enzyme that destroys bacteria.
  1. Trypsin
  2. Salivase
  3. Amylase
  4. Pepsin
  5. Lysozyme
  1. The immune cell that allows for subsequent recognition of an antigen resulting in a secondary response is called a(n)
  1. helper T-cell.
  2. memory cell.
  3. plasma cell.
  4. antigen-presenting cell.
  1. The primary mechanism of antibody action is
  1. phagocytosis.
  2. complement activation.
  3. agglutination.
  1. This type of disease results from the inability of the immune system to distinguish self from non-self antigens.
  1. Autoimmune disease
  2. Allergy
  3. Anaphylactic shock
  4. Human Immunodeficiency Virus
  1. When a localized area exhibits increased capillary filtration and swelling, this is an indication that
  1. an immune response is underway.
  2. fever is developing.
  3. inflammation is occurring.
  4. antibodies are phagocytizing target cells.
  1. Which cell does NOT have a direct role in phagocytosis?
  1. T cell
  2. Neutrophil
  3. Antigen presenting cell
  4. Macrophage
  1. Which cells phagocytize antigen-bearing cells and bind them to their MHCs to activate helper T cells?
  1. Natural killer cells
  2. All immune cells
  3. Antigen presenting cells
  4. Plasma cells
  1. Which cells stimulate both parts of the immune response?
  1. Helper T-cells
  2. Killer T-cells
  3. Complement cells
  4. Plasma cells

14 Which nonspecific defense cells specialize in attacking cancer cells and virus-infected cells?

  1. Macrophages
  2. Natural killer cells
  3. Plasma cells
  4. Helper T-lymphocytes

15. Which of the following is a nonspecific barrier defense?

  1. Macrophages
  2. Natural killer cells
  3. Antibodies
  4. Mucous membranes

16. Which statement below is characteristic of a secondary humoral response?

  1. It results in less antibody secretion.
  2. It triggers fever.
  3. It occurs much more rapidly than a primary response.
  4. It results in less memory cell circulation.

17. Which of the following is NOT a surface barrier to pathogen influx?

  1. Phagocytes
  2. Mucous membranes
  3. Saliva and tears
  4. Skin secretions

18. Which of the following is NOT one of the cardinal signs of inflammation?

  1. Redness
  2. Pain andswelling
  3. Heat
  4. Opsonization

19. The process that begins when a helper T-cell binds to an MHC class protein on a displaying cell is known as

  1. antigen proliferation.
  2. self antigen recognition.
  3. T-cell proliferation.

20. Which of the following is the hallmark of the humoral immune response?

  1. Cell lysis by T cells
  2. Binding of antibody to the antigen.
  3. Antigen presentation
  4. Phagocytosis

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