Anatomy & Physiology (6th Edition)
6th Edition
ISBN: 9780134156415
Author: Elaine N. Marieb, Katja N. Hoehn
Publisher: PEARSON
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Textbook Question
Chapter 19, Problem 6MC
The germinal centers in lymph nodes are largely sites of (a) macrophages, (b) proliferating B lymphocytes, (c) T lymphocytes, (d) all of these.
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The germinal centers in lymph nodes are sites of (a) the lymph sinuses, (b) proliferating B lymphocytes, (c) T lymphocytes, (d) a and c, (e) all of the above.
Lymphoid stem cells that can form all types of lymphocytes occur in the:(a) bloodstream. (b) thymus. (c) red bone marrow. (d) spleen.
Lymphatic capillaries (a) are open-ended like drinking straws, (b) have continuous tight junctions like those of the capillaries of the blood brain barrier, (c) have endothelial cells separated by flaplike minivalves that open wide, (d) have special barriers that stop cancer cells from entering, (e) all of the above.
Chapter 19 Solutions
Anatomy & Physiology (6th Edition)
Ch. 19.1 - What is lymph? Where does it come from?Ch. 19.1 - Name two lymphatic ducts and indicate the body...Ch. 19.1 - What is the driving force for lymph movement?Ch. 19.1 - Prob. 4CYUCh. 19.2 - Prob. 5CYUCh. 19.3 - Prob. 3CYUCh. 19.3 - What is the benefit of having fewer efferent than...Ch. 19.4 - List several functions of the spleenCh. 19.5 - Prob. 9CYUCh. 19.6 - Prob. 10CYU
Ch. 19 - Lymphatic vessels (a) serve as sites for immune...Ch. 19 - Prob. 2MCCh. 19 - Entry of lymph into the lymphatic capillaries is...Ch. 19 - The structural framework of lymphoid organs is (a)...Ch. 19 - Lymph nodes are densely clustered in all of the...Ch. 19 - The germinal centers in lymph nodes are largely...Ch. 19 - Prob. 7MCCh. 19 - The lymphoid organ that functions primarily during...Ch. 19 - Collections of lymphoid tissue (MALT) that guard...Ch. 19 - Prob. 10SAQCh. 19 - Prob. 11SAQCh. 19 - (a) Which anatomical characteristics ensures that...Ch. 19 - There are no lymphatic arteries. Why isnt this a...Ch. 19 - Prob. 1CCSCh. 19 - Prob. 2CCSCh. 19 - Prob. 3CCSCh. 19 - Prob. 4CCS
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- Stem cells responsible for the process of lymphopoiesis are located in the (a) thymus and spleen. (b) lymph nodes. (c) red bone marrow. (d) a, b, and c are correct.arrow_forwardThe basic structural framework of most lymphoid organs consists of (a) areolar connective tissue, (b) hematopoietic tissue, (c) reticular connective tissue, (d) adipose tissue.arrow_forwardRed blood cells that are damaged or defective are removed from the circulation by the (a) thymus. (b) lymph nodes. (c) spleen. (d) tonsils.arrow_forward
- Developmentally, the embryonic lymphatic vessels are most closely associated with the (a) veins, (b) arteries, (c) nerves, (d) thymus.arrow_forwardWhich of the following lymphoid organs have a cortex and a medulla? (More than one choice is correct.) (a) lymph nodes, (b) spleen, (c) thymus, (d) aggregated lymphoid nodules, (e) tonsils.arrow_forward(a) The lymphatic system is a part of the circulatory system and a vital part of the immune system. It is a network of tubes throughout the body that drains fluid (called lymph) from tissues and empties it back into the bloodstream. (i) Give a brief explanation why the lymphatic system is a one-way system, whereas the blood vascular system is a two-way system. (ii) Point out TWO (2) type of infections that may cause the lymph nodes to swell.arrow_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_forwardLymphocytes responsible for providing cell-mediated immunity are called(a) macrophages. (b) B cells. (c) plasma cells. (d) cytotoxic T cells.arrow_forwardStem cells responsible for the process of lymphocytopoiesis are located in the(a) thymus and spleen. (b) lymph nodes. (c) red bone marrow. (d) a, b, and c are correct.arrow_forward
- Which one of the following lymphoid organs does not contain lymphoid follicles or germinal centers? (a) lymph nodes, (b) spleen, (c) thymus, (d) aggregated lymphoid nodules, (e) tonsils.arrow_forwardT lymphocytes are characteristically found in all of the following locations EXCEPT Choose one from following: (A) germinal centers (B) medullary cords (C) thymus gland (D) periphery of lymphatic folliclesarrow_forwardLymphatic capillaries function to transport all of the following EXCEPT Choose from the following: (A) extracellular fluid (B) lipids (C) erythrocytes (D) leukocytes (E) invading micro-organismsarrow_forward
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