Human Physiology
15th Edition
ISBN: 9781259864629
Author: Fox, Stuart Ira
Publisher: Mcgraw-hill Education,
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Chapter 15, Problem 8RA
Mast cell secretion during an immediate hypersensitivity reaction is stimulated when antigens combine with
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Maternal antibodies transmitted via the placenta:
A. are an example of natural passive immunity
B. are an example of natural active immunity
C. are IgG antibodies
D. both are IgG antibodies and are an example of natural active immunity
E. both are IgG antibodies and are an example of natural passive immunity
Which of the following is not a function of antibodies?
Select one:
a. They neutralize pathogens by masking the pathogen surface.
b. They act as molecular adaptors that bridge together pathogen and phagocyte surfaces.
c. They exert toxic effects directly.
d. They act as opsonins that mediate phagocytosis.
e. They activate complement fixation.
The type of lymphocyte responsible for the secondary antibodyresponse is thea. memory B cell. c. T cell.b. B cell. d. helper T cell.
Chapter 15 Solutions
Human Physiology
Ch. 15 - List the phagocytic cells found in blood and...Ch. 15 - Prob. 1bCPCh. 15 - Prob. 2aCPCh. 15 - Prob. 2bCPCh. 15 - Prob. 2cCPCh. 15 - Prob. 3CPCh. 15 - Prob. 4aCPCh. 15 - Prob. 4bCPCh. 15 - Prob. 5CPCh. 15 - Prob. 6aCP
Ch. 15 - Prob. 6bCPCh. 15 - Define the term histocompatibility antigens and...Ch. 15 - Prob. 7bCPCh. 15 - Prob. 8aCPCh. 15 - Prob. 8bCPCh. 15 - Prob. 8cCPCh. 15 - Prob. 8dCPCh. 15 - Prob. 9CPCh. 15 - Prob. 10aCPCh. 15 - Prob. 10bCPCh. 15 - Prob. 10cCPCh. 15 - Prob. 11CPCh. 15 - Prob. 12aCPCh. 15 - Prob. 12bCPCh. 15 - Which of these offers a nonspecific defense...Ch. 15 - Prob. 2RACh. 15 - Prob. 3RACh. 15 - Prob. 4RACh. 15 - Prob. 5RACh. 15 - Prob. 6RACh. 15 - Prob. 7RACh. 15 - Mast cell secretion during an immediate...Ch. 15 - Prob. 9RACh. 15 - Which of these cell types aids the activation of T...Ch. 15 - Prob. 11RACh. 15 - Delayed hypersensitivity is mediated by...Ch. 15 - Active immunity may be produced by...Ch. 15 - Which of these statements about class-2 MHC...Ch. 15 - Prob. 15RACh. 15 - Prob. 16RACh. 15 - Prob. 17RACh. 15 - Which of these statements about gamma interferon...Ch. 15 - Explain how antibodies help to destroy invading...Ch. 15 - Identify the different types of interferons and...Ch. 15 - Distinguish between the class-I and class-2 MHC...Ch. 15 - Prob. 22RACh. 15 - Prob. 23RACh. 15 - Describe how plasma cells attack antigens and how...Ch. 15 - Explain how tolerance to self-antigens may be...Ch. 15 - Use the clonal selection theory to explain how...Ch. 15 - Prob. 27RACh. 15 - Distinguish between immediate and delayed...Ch. 15 - Describe regulatory T lymphocytes and their...Ch. 15 - Prob. 30RACh. 15 - The specific T lymphocyte immune response is...Ch. 15 - Lizards are cold-blooded; their body temperature...Ch. 15 - Why are antibodies composed of different chains,...Ch. 15 - As a scientist trying to cure allergy, you are...Ch. 15 - The part of the placenta that invades the mother's...Ch. 15 - Describe the antigen-dependent and...Ch. 15 - People with peanut allergies could go into...Ch. 15 - Identify some immunologically privileged sites in...Ch. 15 - Use figure 15.6 to answer the following questions...Ch. 15 - Use figure 15.6 to answer the following questions...Ch. 15 - Prob. 41RACh. 15 - Prob. 42RA
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- Hyperacute graft rejection is caused by Select one: A. hyperactivated helper T cells. B. arteriosclerosis. C. type IV hypersensitivity. D. pre-existing host antibodies. E. proliferation of smooth muscle cells. O O O Oarrow_forwardCHAPTER 20 The Lymphatic System and Immunity Matching SECTION 3 Revie w Match each lettered term with the most closely related description. a. opsonization 1 b. helper T cells Two parallel pairs of polypeptide chains Found on helper T cells C. antibody d. class II MHC 3 Active and passive 4 Transfer of antibodies e. costimulation Attacked by HIV f. IgM 6 Enhances phagocytosis g. class I MHC h. IgG 7 MHC proteins present in the plasma membranes of all nucleated cells i. passive immunity j. anaphylaxis 8 Differentiate into memory and plasma cells 9 MHC proteins present in the plasma membranes of all APCS and lymphocytes 9 k. CD4 markers 10 I. acquired immunity 10 Antibodies used to determine blood type 11 m. B lymphocytes 11 Secondary binding process required for T cell activation 12 12 Accounts for 80 percent of all immunoglobulins 13 13 Circulating allergen stimulates mast cells throughout body Match each lettered term with thearrow_forwardI. Attach to mast cells and are involved in allergic reactions. II. The first antibodies to be produced in response to infection. II. Primarily found in glandular secretions. IV. Found on the surface of B lymphocytes. V. Comprises 75% of antibodies in adult blood. What is the correct order of above definitions? A) IgE, IgM, IgA, IgD, IgG. B) IgD, IgM, IgA, IgE, IgG. C) IgE, IgG, IgA, IgD, IgM. D) IgA, IgM, IgE, IgD, IgG.arrow_forward
- What class of antibodies is normally found in the mucosa of the respiratory tract? a. IG-A b. IG-D c. IG-M d. IG-Garrow_forwardYou have a patient with abnormally high IgE antibodies. What are two scenarios that might lead to a high level of IgE antibodies? How would you find out which scenario is causing the increase in IgE?arrow_forwardContact dermatitis: A. is antibody mediated B. is both a type I hypersensitivity reaction and is cell mediated C. is a type I hypersensitivity reaction D. is cell mediatedarrow_forward
- Which of the following is a critical feature ofimmediate hypersensitivity?a. inflammationb. cytotoxic T cellsc. recruitment of immune cellsd. histamine releasearrow_forwardWhich of the following statements are true for antigen presentation. a. Antigen presentation means that other cells attach the pathogen first and present it to T cells. b. Antigen-presenting cells display protein fragments, resulting from the digestion of the pathogen, in complex with MHC receptor to B cells c. Antigen presenting cells display protein fragments, resulting from the digestion of the pathogen, in complex with MHC receptor on their surface. d. Antigen-presenting cells are phagocytic cells e. Antigen presentation is required for T cell activation f. Cytokines released by macrophages are required for T cell activation g. T cell receptors recognize the MHC receptors in complex with antigen fragments displayed by antigen-presenting cells. h. Phagocytic cells are involved in innate immunity. Therefore they have no role in T-cell activationarrow_forwardwhich one of the following properties of antibodies is NOT dependant on the structure of the heavy-chain constant region? A. ability to cross the placenta B. isotype (class of antibody) C. ability to fix complement D. affinity for drugarrow_forward
- Define the following terms:a. T cellsb. B cellsc. cellular immunityd. humoral immunitye. myoadenylate deaminase deficiencyarrow_forwardA 41-year-old man has a penetrating injury to his right eye. A month later he has worsening vision in his left eye. Through which of the following immunoogic mechanisms has his vision in the left eye been reduced? a.Release of sequestered antigens b.Hypogammaglobulinemia c.Molecular mimicry d.T lymphocyte anergyarrow_forwardWhich of the following cells are primarily targeted by HIV?a. Nerve cells.b. Helper T celIs.c. Phagocytes.d. Cytotoxic T cells.arrow_forward
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