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    Exam Review

    1. Which of the following is directly related to respiratory production of carbon dioxide?
      A)
      Regulation of blood pressure
      B)
      Regulation of pH
      C)
      Regulation of body temperature
      D)
      The synthesis of vasodilators
      E)
      Aids in defecation
    2. Lymphatic vessels recover about. __________ of the fluid filtered by capillaries.
      A)
      5%
      B)
      85%
      C)
      25%
      D)
      50%
    3. The immune system spans nearly every organ and tissue in the human body.
      A)
      True
      B)
      False
    4. Pus is made of dead neutrophils, macrophages, and other tissue debris from a damaged tissue.
      A)
      True
      B)
      False
    Page 1 of 18

    Exam Review

    1. Memory T cells can be up to ______ old.
      A)
      weeks
      B)
      days
      C)
      months
      D)
      years
      E)
      decades
    2. One group of proteolytic enzymes secreted by natural killer (NK) cells is _______
      A)
      granzymes
      B)
      selectins
      C)
      cytokines
      D)
      Interferons
      E)
      perforins
    3. Immune surveillance is a process in which _______ nonspecifically detect and destroy foreign cells and diseased host cells.
      A)
      reticular cells
      B)
      macrophages
      C)
      natural killer (NK) cells
      D)
      T lymphocytes (T cells)
      E)
      dendritic cells
    4. Red bone marrow is the point of origin of all immune cells of the lymphatic system.
      A)
      True
      B)
      False
    Page 2 of 18

    Exam Review

    1. _________ are secreted by cells infected with viruses, alerting neighboring cells and protecting them from becoming infected.
      A)
      Interferons
      B)
      Granzymes
      C)
      Complement system globulins
      D)
      Perforins
      E)
      Pyrogens
    2. Some antibodies against foreign antigens can react to similar self-antigens, causing an autoimmune disease.
      A)
      True
      B)
      False
    3. A pathogen is a disease-causing microorganism.
      A)
      True
      B)
      False
    4. Autoimmune diseases are disorders in which the immune system fails to distinguish __________from foreign ones
      A)
      self-antibodies
      B)
      self-immunoglobulins
      C)
      self-antigens
      D)
      self-interleukins
      E)
      self-complement proteins
    Page 3 of 18

    Exam Review

    1. Mucous membranes prevent most pathogens from entering the body because of the stickiness of the mucus and the presence of lysozymes.
      A)
      True
      B)
      False
    2. Removal of the __________ would be more harmful to a one-year-old child than an adult.
      A)
      lymph node
      B)
      appendix
      C)
      palatine tonsil
      D)
      spleen
      E)
      thymus
    3. _________ constitutes about 80% of circulating antibodies in plasma.
      A)
      IgG
      B)
      IgD
      C)
      IgM
      D)
      IgE
      E)
      IgA
    4. Lymph is similar to blood plasma, but very low in
      A)
      carbon dioxide
      B)
      sodium and potassium
      C)
      protein
      D)
      metabolic waste
      E)
      electrolytes
    Page 4 of 18

    Exam Review

    1. T cells achieve immunocompetence in the
      A)
      Liver
      B)
      spleen
      C)
      bloodstream
      D)
      bone marrow
      E)
      thymus
    2. The children _________ tonsils are the largest, and their surgical removal tonsillectomy used to be one of the most common surgical procedures performed in children
      A)
      pharyngeal
      B)
      lingual
      C)
      palatine
      D)
      adenoid
      E)
      nasopharyngeal
    3. Mucus plays an important role in cleansing inhaled air. It is produced by
      A)
      squamous alveolar cells
      B)
      goblet cells
      C)
      great alveolar cells
      D)
      cilated cells
      E)
      the pleurae
    4. Each hemoglobin molecule can transport up to ________ oxygen molecules.
      A)
      5
      B)
      4
      C)
      2
      D)
      6
      E)
      3
    Page 5 of 18

    Exam Review

    1. Which of the following would slow down gas exchange between the blood and alveolar air?
      A)
      A decrease in membrane thickness
      B)
      An increase in alveolar surface area
      C)
      An increase in membrane thickness
      D)
      A decrease in nitrogen solubility
      E)
      An increase in respiratory rate
    2. In the air we breathe, which gas is found in the highest concentration?
      A)
      Nitrogen
      B)
      Water vapor
      C)
      Carbon dioxide
      D)
      Hydrogen
      E)
      Oxygen
    3. The addition of CO2 to the blood generates _________ ions in the RBCs, which in turn stimulates RBCs to unload more oxygen.
      A)
      chloride
      B)
      potassium
      C)
      nitrogen
      D)
      sodium
      E)
      hydrogen
    4. The heart indents into the _______ of the left lung.
      A)
      hilum
      B)
      oblique fissure
      C)
      base
      D)
      cardiac notch
      E)
      арех
    Page 6 of 18