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The antibodies produced in allergic reactions


A) are called allergens.
B) are secreted by mast cells.
C) belong to the immunoglobulin E group.
D) belong to the immunoglobulin G group.

E) None of the above
F) All of the above

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Plasma cells


A) increase the volume of the blood plasmA.
B) produce antibody molecules.
C) directly attack antigens.
D) produce interferon.

E) A) and B)
F) A) and C)

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The region of a lymph node through which blood vessels and nerves pass is called the


A) sinus.
B) capsule.
C) nodule.
D) hilum.

E) A) and B)
F) None of the above

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D

The foreign,or "non-self" substances that trigger immune responses are called ______.

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The type of resistance that is acquired as a result of developing a disease is


A) naturally acquired active immunity.
B) artificially acquired active immunity.
C) artificially acquired passive immunity.
D) naturally acquired passive immunity.

E) A) and C)
F) None of the above

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The functions of the lymphatic system do not include


A) returning interstitial fluid to the bloodstream.
B) protecting the body against infection.
C) transporting hormones to intestinal smooth muscle.
D) transporting the products of lipid digestion from the intestine to the liver.

E) B) and C)
F) B) and D)

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Foreign particles that are injected into the skin enter the lymphatic system


A) rapidly.
B) slowly.
C) not at all,because lymphatic valves prevent this.
D) not at all,because the skin lacks lymphatic capillaries.

E) All of the above
F) B) and D)

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A substance that can stimulate a primary immune response but is unable to produce the symptoms of a disease is a(n)______.

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The cells that are primarily responsible for immunity are


A) lymphocytes and macrophages.
B) neutrophils and lymphocytes.
C) monocytes and macrophages.
D) lymphocytes and monocytes.

E) None of the above
F) All of the above

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Two mechanical barriers to infection are interferon and inflammation.

A) True
B) False

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After lymph leaves the collecting ducts,it enters _____ and becomes part of the ______.


A) arteries;serum
B) capillaries;blood supply
C) veins;plasma
D) lymph nodes;lymphatic trunks

E) C) and D)
F) None of the above

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A transplant recipient may be able to eventually discontinue immunosuppressant drugs if


A) the donor receives bone marrow stem cells from the recipient.
B) the donor and recipient are both under age 30.
C) the transplanted organ is not vital.
D) the donor received a well-matched transplant from the recipient.

E) All of the above
F) A) and B)

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D

A vaccine against HIV


A) is available for those who can afford it.
B) may be impossible due to the variability and diversity of HIV.
C) consists of cocktails of drugs taken daily.
D) prevents opportunistic infections.

E) A) and B)
F) None of the above

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_________ initiate(s) a cascade effect in response to foreign proteins in the body.


A) Antibodies
B) Interferon
C) The complement system
D) Natural killer cells

E) A) and D)
F) C) and D)

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C

The spleen


A) is the largest lymphatic organ.
B) contains nodules similar to lymphatic nodules.
C) contains many phagocytes.
D) all of the above.

E) A) and B)
F) None of the above

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In an autoimmune disease,the immune response is directed toward


A) foreign cells.
B) cells of the body ("self") .
C) all antigens.
D) all antibodies.

E) None of the above
F) A) and C)

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B cells divide and differentiate into _________ which produce and secrete antibodies.


A) T cells
B) antibodies
C) megakaryocytes
D) plasma cells

E) B) and C)
F) A) and D)

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Henry has a cut on his thigh that becomes infected.The lymph nodes in his __________ enlarge.


A) cervical region
B) thoracic region
C) inguinal region
D) supratrochlear region

E) A) and B)
F) A) and C)

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Morris has lung cancer and is given the drug Avastin.His doctor says that the drug is a monoclonal antibody.This means that the drug consists of


A) a cocktail of many types of antibodies.
B) a cocktail of many types of antigens.
C) a single type of antibody.
D) a single type of antigen.

E) B) and C)
F) All of the above

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Stephanie has her cancerous right breast removed,and the surgeon also removes lymph nodes in the axillary region,to prevent spread of the cancer.As a result,Stephanie's right arm


A) loses its blood supply.
B) receives too much blood and swells.
C) becomes edematous.
D) loses tissue fluiD.

E) B) and D)
F) A) and D)

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