HUMAN ANATOMY PACKAGE 2015
15th Edition
ISBN: 9781323100561
Author: Martini
Publisher: PEARSON C
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Chapter 23, Problem 19RFT
Summary Introduction
Introduction:
Plasma cells are also known as plasmocytes or effector B (bone marrow-derived) cells. When B cells are activated, they give rise to daughter cells. These daughter cells evolve into memory B cells and plasma cells. Plasma cells are capable of secreting antibodies that neutralize pathogen.
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T cells and B cells can be activated only by, (a) pathogenic microorganisms.(b) interleukins, interferons, and colony-stimulating factors. (c) cells infected with viruses, bacterial cells, or cancer cells. (d) exposure to a specific antigen bound to a MHC protein on a plasma membrane.
Perforins are destructive proteins associated with the activity of, (a) T cells. (b) B cells. (c) macrophages. (d) plasma cells.
CD4 markers are associated with (a) cytotoxic cells. (b) suppressor cells. (c) helper T cells. (d) a, b, and c.
Chapter 23 Solutions
HUMAN ANATOMY PACKAGE 2015
Ch. 23 - Prob. 1RFTCh. 23 - Match each numbered item with the most closely...Ch. 23 - Prob. 3RFTCh. 23 - Prob. 4RFTCh. 23 - Prob. 5RFTCh. 23 - Prob. 6RFTCh. 23 - Prob. 7RFTCh. 23 - Match each numbered item with the most closely...Ch. 23 - Prob. 9RFTCh. 23 - Prob. 10RFT
Ch. 23 - Identify the structures of the lymphatic system in...Ch. 23 - The lymphatic system is composed of (a) lymphatic...Ch. 23 - Prob. 13RFTCh. 23 - 14. Most of the lymph returns to the venous...Ch. 23 - Prob. 15RFTCh. 23 - Prob. 16RFTCh. 23 - Prob. 17RFTCh. 23 - Prob. 18RFTCh. 23 - Prob. 19RFTCh. 23 - Prob. 20RFTCh. 23 - Prob. 21RFTCh. 23 - Prob. 1RCCh. 23 - Prob. 2RCCh. 23 - Blocking the antigen receptors on the surface of...Ch. 23 - Prob. 4RCCh. 23 - 5. What major artery and vein pass through the...Ch. 23 - Prob. 6RCCh. 23 - Prob. 7RCCh. 23 - Prob. 8RCCh. 23 - 9. What occurs in secondary lymphatic structures?
Ch. 23 - 10. Where are aggregated lymphoid nodules, also...Ch. 23 - Prob. 1CTCh. 23 - Prob. 2CTCh. 23 - Prob. 3CT
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- Which of the following is NOT true about T cells?(a) T cells develop from lymphoid stem cells in the bonemarrow and mature in the thymus.(b) Cell-mediated immunity is primarily carried out by Tcells.(c) Subsequent differentiation of T cells produces cytotoxic(killer) T cells, delayed-hypersensitivity T cells, helper Tcells, and regulatory T cells.(d) Natural killer cells (NK) are exclusively differentiated Tcells.(e) T cells act in situations where antigens are embeddedin cell membranes or are inside host cells and thus areinaccessible to antibodies.arrow_forwardWhich statement best describes the difference between responses of effector B cells (plasma cells) and those of cytotoxic T cells? (A) B cells confer active immunity;cytotoxic T cells confer passive immunity. (B) B cells respond the first time a pathogen is present; cytotoxic T cells respond subsequent times. (C) B cells secrete antibodies against a pathogen; cytotoxic T cells kill pathogen-infected host cells. (D) B cells carry out the cell-mediated response; cytotoxic T cells carry out the humoral response.arrow_forwardWhich of the following statements is not true?(A) An antibody has more than one antigen-binding site.(B) A lymphocyte has receptors for multiple differentantigens.(C) An antigen can have different epitopes.(D) A liver or muscle cell makes one class of MHC molecule.arrow_forward
- Vaccination increases the number of(A) different receptors that recognize a pathogen.(B) lymphocytes with receptors that can bind to the pathogen.(C) epitopes that the immune system can recognize.(D) MHC molecules that can present an antigenarrow_forwardAll of the following cells directly incorporate antigens into their structures, EXCEPT: A). Antigen presenting cells. B). Helper T cells C). B cells D). Killer T cellsarrow_forwardThe best definition of an antigen is:(a) A foreign molecule in the body(b) A chemical that elicits antibody production and binds tothat antibody(c) A molecule that binds to antibody(d) A pathogen(e) An enzyme that activates B cellsarrow_forward
- Phagocytes move through capillary walls by squeezing between adjacent endothelial cells, a process known as (a) emigration. (b) chemotaxis. (c) adhesion. (d) perforation.arrow_forwardPhagocytes move through capillary walls by squeezing between adjacent endothelial cells, a process known as (a) diapedesis. (b) chemotaxis. (c) adhesion. (d) perforation.arrow_forwardCell-mediated immunity is carried out by………….. while humoral immunity is mainly carried out by……………….. a. B cells/T cells b. Epitopes/Antigens c. T cells/B cells d. Antibodies/Antigens e. Antibodies/Phagocytesarrow_forward
- Which of the following immune cells/molecules are most ef-fective at destroying intracellular pathogens?(a) TH cells (d) B cells(b) Antibodies (e) Complement(c) TC cellsarrow_forwardWhich of the following is NOT true of Innate Lymphoid Cells (ILCs)? A) Each ILC type responds to a different category of pathogens. b.)) ILCs are derived from the common lymphoid precursor. c. )) ILCs rearrange their antigen receptors in a similar way to T-cells. d. ))Each ILC type is distinguished by the cytokines that it produces. e. ))Development of each ILC type is driven by unique transcription factors.arrow_forward1. How does the thymus help the body avoid autoimmune responses? (A) By negatively selecting T cells with receptors that bind to peptide-MHC complexes with high affinity. (B) By positively selecting T cells with receptors that only recognize self peptides. (C) By facilitating cell signaling between T cell surface receptors and antigens in the thymic capsule. (D) By using clonal deletion to eliminate antigen-presenting cells that have low affinity for T cells receptors. 2. Functions of the innate immune system include all of these EXCEPT: (A) to eliminate pathogens directly. (B) to mediate the inflammatory response. (C) to activate the adaptive immune system. (D) All of these are functions of the innate immune system.arrow_forward
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