Human Anatomy
9th Edition
ISBN: 9780135168059
Author: Marieb, Elaine Nicpon, Brady, Patricia, Mallatt, Jon
Publisher: Pearson Education, Inc.,
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Chapter 21, Problem 8RQ
Summary Introduction
To determine:
The organ having only T lymphocytes.
Introduction:
Lymphoid organs are the organs of the lymphatic system that are associated with the task of providing immunity to the body. There are two categories of the lymphoid organs, namely the primary lymphoid organs and the secondary lymphoid organs. Depending upon their role in the immune function, the lymphoid organs contain specific type(s) of lymphocytes.
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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.
The largest collection of lymphoid tissue in the body is contained in the: (a) adult spleen. (b) adult thymus. (c) bone marrow. (d) tonsils.
It sometimes is difficult to distinguish the different lymphoid organs from one another in histological sections. How would you tell the thymus from a lymph node? (a) Only the thymus has a cortex and medulla; (b) lymphocytes are far less densely packed in the thymus than in the lymph node; (c) the thymus contains no blood vessels; (d) only the thymus has distinct lobules and thymic corpuscles.
Chapter 21 Solutions
Human Anatomy
Ch. 21 - Prob. 1CYUCh. 21 - A sentinel lymph node is the first lymph node to...Ch. 21 - Fatty lymph, picked up by the lacteals in the...Ch. 21 - Prob. 4CYUCh. 21 - Prob. 5CYUCh. 21 - Prob. 6CYUCh. 21 - Prob. 7CYUCh. 21 - Prob. 8CYUCh. 21 - Prob. 9CYUCh. 21 - Prob. 10CYU
Ch. 21 - Prob. 11CYUCh. 21 - Lymphatic capillaries (a) are open-ended like...Ch. 21 - The basic structural framework of most lymphoid...Ch. 21 - Prob. 3RQCh. 21 - Prob. 4RQCh. 21 - Prob. 5RQCh. 21 - Prob. 6RQCh. 21 - Which of the following lymphoid organs have a...Ch. 21 - Prob. 8RQCh. 21 - Developmentally, the embryonic lymphatic vessels...Ch. 21 - It sometimes is difficult to distinguish the...Ch. 21 - In some people, the thoracic duct does not receive...Ch. 21 - Prob. 12RQCh. 21 - Prob. 13RQCh. 21 - Prob. 14RQCh. 21 - Prob. 15RQCh. 21 - Prob. 16RQCh. 21 - Prob. 17RQCh. 21 - As George was reading this chapter for the second...Ch. 21 - Prob. 19RQCh. 21 - Prob. 20RQCh. 21 - Prob. 1CRCAQCh. 21 - Prob. 2CRCAQCh. 21 - Prob. 3CRCAQCh. 21 - Mrs. Roselli has undergone a left radical...Ch. 21 - Prob. 5CRCAQCh. 21 - Simi realized she was very ill. During a recent...
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- Developmentally, the embryonic lymphatic vessels are most closely associated with the (a) veins, (b) arteries, (c) nerves, (d) thymus.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_forwardThe 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.arrow_forward
- Which part of the body does the thoracic duct not drain lymph from? (a) the left side of the neck, (b) both the lower limbs, (c) both the upper limbs, (d) the left half of the head.arrow_forwardWhich of the following is the only lymphatic organ to demonstrate AFFERENT lymphatic vessels? Choose from the follliwng: (A) tonsil (B) spleen (C) thymus (D) lymph nodearrow_forwardAlthough you might consider this image to be a histology image of a tonsil, you would not identify it as such due to the inability to visualize which of the following? Choose from the following: (A) epithelium (B) smooth muscle (C) crypts (D) lymphatic folliclesarrow_forward
- 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.arrow_forwardStem 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_forwardLymphocytes that develop immunocompetence in the thymus are (a) B lymphocytes, (b) T lymphocytes.arrow_forward
- T 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_forwardLymph collected from the lower abdomen, pelvis, and lower limbs is carried by the: (a) right lymphatic duct. (b) inguinal duct. (c) thoracic duct. (d) aorta.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
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