Physiology Chapter 24

Inappropriate or excessive immune responses to antigens are
A. autoimmune diseases.
B. allergies.
C. the result of stress.
D. immunodeficiency diseases.
E. common in the elderly.

B. allergies.

Meghan thinks she has an abscessed tooth. If she does, what type of white blood cell would you expect to see in elevated numbers in a differential count?
A. monocytes
B. basophils
C. neutrophils
D. lymphocytes
E. eosinophils

C. neutrophils

A substance that induces fever is known as a(n)
A. acute phase protein.
B. cytokine.
C. opsonin.
D. pyrogen.
E. chemotaxin.

D. pyrogen.

Immunoglobulins that are found on the surface of B lymphocytes and may play a role in regulation of the humoral immune response are
A. IgG.
B. IgM.
C. IgA.
D. IgD.
E. IgE.

D. IgD.

Opsonins function by
A. digesting invading cells directly.
B. poisoning and killing invading cells, marking or tagging pathogens so phagocytes can find and ingest them, and digesting invading cells directly.
C. marking or tagging pathogens so phagocytes c

C. marking or tagging pathogens so phagocytes can find and ingest them.

Lymphocytes and plasma cells
A. mediate the acquired immune response, are found primarily in lymphoid tissue, and all function and behave the same way.
B. mediate the acquired immune response and are found primarily in lymphoid tissue.
C. are found primar

B. mediate the acquired immune response and are found primarily in lymphoid tissue.

A patient has elevated eosinophils and monocytes but normal levels of neutrophils, basophils, and lymphocytes. Which of the following could be causing those levels?
A. a chronic bacterial infection
B. an acute bacterial infection
C. a severe allergic reac

D. a chronic parasitic infection

A sample of tissue from an injury shows a large number of basophils. This would indicate that the tissue was
A. inflamed.
B. abscessed.
C. being rejected.
D. infected by viruses.
E. infected by multicellular parasites.

A. inflamed.

Match the type of immunity to its description.
A. specific
B. nonspecific
Infected cells are killed by perforin and granzymes

A. specific

The cells responsible for the production of circulating antibodies are
A. NK cells.
B. plasma cells.
C. helper T cells.
D. cytotoxic T cells.
E. suppressor T cells.

B. plasma cells.

Leslie has a bad sore throat and the lymph nodes in her neck are swollen. This indicates
A. the focus of the infection is the lymph nodes.
B. the lymph gland has increased its secretion of thymosin.
C. the affected lymph nodes contain an increased number

C. the affected lymph nodes contain an increased number of lymphocytes.

The cells responsible for cell-mediated immunity are the
A. T lymphocytes.
B. plasma cells.
C. B lymphocytes.
D. suppressor T lymphocytes.

A. T lymphocytes.

Stem cells that will form T lymphocytes are modified in the
A. liver.
B. bone marrow.
C. spleen.
D. thymus.
E. kidneys.

D. thymus.

Cytokines function by
A. acting as messengers for growth and activity of other cells.
B. poisoning and killing invading cells.
C. acting as messengers for growth and activity of other cells and poisoning and killing invading cells.
D. acting as messengers

A. acting as messengers for growth and activity of other cells.

Which of the following immune cells are also known as Langerhans cells?
A. basophils
B. mast cells
C. dendritic cells
D. lymphocytes
E. eosinophils

C. dendritic cells

Which of the following are NOT antigen-presenting cells (APCs)?
A. neutrophils
B. dendritic cells
C. lymphocytes
D. monocytes
E. macrophages

A. neutrophils

Match the type of immunity to its description.
A. specific
B. nonspecific
Secreted lysozyme kills bacteria

B. nonspecific

An inflammatory response is triggered when
A. red blood cells release pyrogens.
B. T lymphocytes release interferon.
C. blood flow to an area increases.
D. mast cells release granules containing histamine and heparin.
E. neutrophils phagocytize bacteria.

mast cells release granules containing histamine and heparin.

________ have been found to be the precursor cells of macrophages.
A. Lymphocytes
B. Basophils
C. Monocytes
D. Neutrophils
E. Eosinophils

C. Monocytes

The human immunodeficiency virus (HIV) that causes the disease known as AIDS selectively infects
A. suppressor T cells.
B. helper T cells.
C. cytotoxic T cells.
D. plasma cells.
E. B cells.

B. helper T cells.

The first line of cellular defense against pathogens are the
A. plasma cells.
B. B lymphocytes.
C. phagocytes.
D. T lymphocytes.
E. NK cells.

C. phagocytes.

Cells that help to regulate the immune response are
A. NK cells.
B. helper T cells.
C. plasma cells.
D. cytotoxic T cells.
E. B lymphocytes.

B. helper T cells

Match the type of immunity to its description.
A. specific
B. nonspecific
Antibodies in breast milk protect a newborn baby from pathogens.

A. specific

Which of these is matched incorrectly?
A. acquired immunity - responses directed toward specific invaders
B. active immunity - an immune response started and developed by the cells
C. innate immunity - nonspecific responses
D. actively acquired immunity -

D. actively acquired immunity - immunity passed via the placenta or milk to offspring

Lymphocytes that attack foreign cells or body cells infected with viruses are
A. helper T cells.
B. suppressor T cells.
C. plasma cells.
D. cytotoxic T cells.
E. B lymphocytes.

D. cytotoxic T cells.

Match the type of immunity to its description.
A. specific
B. nonspecific
NK cells cause apoptosis of viral-infected cells.

B. nonspecific

Swelling and soreness of the lymph nodes indicate that
A. dangerous cancerous changes are occurring in the immune system.
B. the immune system is incapable of working.
C. immune cells are fighting infection.
D. too much or improper exercise has been under

C. immune cells are fighting infection.

Immunoglobulins that are the first antibodies to be produced in response to infection are
A. IgG.
B. IgD.
C. IgM.
D. IgA.
E. IgE.

C. IgM.

Immunoglobulins that are mainly responsible for resistance against viruses, bacteria, and bacterial toxins are
A. IgD.
B. IgA.
C. IgG.
D. IgE.
E. IgM

C. IgG.

A patient has elevated neutrophils and monocytes with normal levels of basophils, eosinophils, and lymphocytes. Which of the following is the most likely cause of these test results?
A. an autoimmune reaction
B. an allergic reaction
C. an acute viral infe

D. a chronic bacterial infection

Immunoglobulins that attach to mast cells and are involved in allergic reactions are
A. IgG.
B. IgA.
C. IgM.
D. IgD.
E. IgE.

E. IgE.

Immunoglobulins that are primarily found in glandular secretions are
A. IgG.
B. IgD.
C. IgM.
D. IgE.
E. IgA.

E. IgA.

Match the type of immunity to its description.
A. specific
B. nonspecific
present at birth

B. nonspecific

In a routine examination, some blood is taken and analyzed. The results show a high IgM level for the mumps antigen. This would indicate
A. the person is just coming down with mumps.
B. the person is allergic to mumps.
C. the person is immune to mumps.
D.

A. the person is just coming down with mumps.

Chemotaxins function in
A. attracting additional immune cells.
B. digesting invading cells and attracting additional immune cells.
C. poisoning and killing invading cells.
D. digesting invading cells.
E. digesting invading cells, attracting additional imm

A. attracting additional immune cells.

________ is the immunoglobulin class that comprises 75% of antibodies in adult blood.
A. IgE
B. IgM
C. IgA
D. IgG
E. IgD

D. IgG

Stem cells that will form B lymphocytes are found in the
A. liver.
B. bone marrow.
C. spleen.
D. thymus.
E. kidneys.

B. bone marrow.

Milly has just received a kidney transplant and is taking cyclosporin A, a drug that suppresses cytotoxic T cells. What does this medication do?
A. prevents inflammation from destroying the transplanted kidney
B. depresses hematopoiesis
C. increases the n

D. prevents rejection

Passive immunity is a type of ________ immunity.
A. acquired
B. innate

A. acquired

Autoimmune diseases are an example of a(n) ________ response by the immune system.
A. incorrect
B. lack of
C. overactive
D. None of the answers are correct

A. incorrect

A patient with hay fever symptoms that have been going on for a couple weeks comes to your office to be treated for his hay fever. If a white blood cell differential count was performed, which leukocytes would likely be elevated?
A. monocytes, eosinophils

A. monocytes, eosinophils, and basophils

Which of the following acts as the earliest form of defense against exogenous pathogens in the list?
A. skin
B. inflammation
C. lymphocytes
D. macrophages

A. skin