HUMAN ANATOMY PACKAGE 2015
15th Edition
ISBN: 9781323100561
Author: Martini
Publisher: PEARSON C
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Question
Chapter 23, Problem 2RC
Summary Introduction
Introduction:
HIV (human immunodeficiency virus) leads to the condition referred as AIDS (acquired immunodeficiency syndrome). This virus basically interferes with the body’s ability to fight against in the infections. The virus travels through the contact with the infected semen, blood, or vaginal fluids.
Correct answer:
HIV infects cytotoxic T cells.
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Human immune system
a) Pathogen-associated molecular patterns are conserved molecular structures produced by microorganisms, but not by host cells.
b) A virus-infected host cell that displays a viral antigen via MHC class I molecules may become a target of cytotoxic T cells.
c) Secreted MHC Class I proteins present in blood plasma can function as opsonins.
d) Both (a) and (b) are correct and (c) is incorrect
e) Statements (a), (b) and (c) are all correct
Give a function for each of the following: (a) cytotoxic T cells (b) helper T cells(c) regulatory T cells (d) plasma cells (e) NK cells (f) interferons (g) T cells (h) B cells (i) interleukins.
Immunoglobulin A (a) recognizes pathogen-associated molecular patterns (b) binds with NK cells (c) prevents pathogens from attaching to epithelial surfaces (d) is found mainly on dendritic cell surfaces (e) is found mainly on T-cell surfaces
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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- Immunosuppression is a lowering of the responsiveness ofthe immune system to materials it recognizes as foreign and isproduced by _________and_________ .(a) antibodies and foreign antigens(b) NK cells and allergen desensitizers(c) radiation and cytotoxic drugs(d) hypersensitivity and transplant rejection(e) a and darrow_forwardVirus-infected cells are detected and destroyed by which cells of the immune system? A)helper T cells B)macrophages C)cytotoxic T cells D)B cellsarrow_forwardWhich type of cell links the innate (nonspecific) defenses and the adaptive (specific) defenses? (a) helper T cell (b) cytotoxic T cell (c) dendritic cell (d) B cell.arrow_forward
- Granzyme and perforin are used by what cell type in the immune system to carry out its function? O 1) TH1 O 2) Neutrophil 3) Cytotoxic T cell O 4) Eosinophilarrow_forwardThe Human Immunodeficiency virus (HIV) cripples the specific immune response because HIV OA) directly destroys macrophages O B) directly destroys natural killer cells OC) directly destroys suppressor T cells OD) directly destroys helper T cells OE) All of the abovearrow_forwardThe major histocompatibility complex (MHC) (a) consists of Y-shaped molecules (b) encodes certain antibodies (c) encodes Toll-like receptors (d) inhibits complement release from macrophages (e) encodes a group ofcell-surface proteins.arrow_forward
- 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_forwardSelect the type of T cell that plays a role in diminshing an immune response: a) TH17 b) TREG c) TC d) TH1arrow_forwardThe brain can sense cytokines released by peripheral immune cells through the following means EXCEPT a.) Cytokines being transported across the blood-brain barrier b.) Cytokines crossing intact blood-brain barrier by diffusion c.) Cytokines circumventing blood-brain barrier at circumventricular organs d.) Cytokines activating general visceral sensory nervesarrow_forward
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