Anatomy & Physiology
5th Edition
ISBN: 9780321861580
Author: Marieb, Elaine N.
Publisher: Pearson College Div
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Chapter 19, Problem 1RQ
Lymphatic vessels (a) serve as sites for immune surveillance, (b) filter lymph, (c) transport leaked plasma proteins and fluids to the cardiovascular system, (d) are represented by vessels that resemble arteries, capillaries, and veins.
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(a) Which anatomical characteristic ensures that the flow of lymph through a lymph node is slow? (b) Why is this desirable?
Lymph 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.
Red blood cells that are damaged or defective are removed from the circulation by the (a) thymus. (b) lymph nodes. (c) spleen. (d) tonsils.
Chapter 19 Solutions
Anatomy & Physiology
Ch. 19 - What is lymph? Where does it come from?Ch. 19 - Name two lymphatic ducts and indicate the body...Ch. 19 - What is the driving force for lymph movement?Ch. 19 - Prob. 4CYUCh. 19 - What is the benefit of having fewer efferent than...Ch. 19 - Prob. 6CYUCh. 19 - List several functions of the spleenCh. 19 - Lymphatic vessels (a) serve as sites for immune...Ch. 19 - Prob. 2RQCh. 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. 7RQCh. 19 - The lymphoid organ that functions primarily during...Ch. 19 - Collections of lymphoid tissue (MALT) that guard...Ch. 19 - Prob. 10RQCh. 19 - Prob. 11RQCh. 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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- 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.arrow_forwardWhich 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_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_forward
- 16) Which of the following is not true about the functions of lymphatic capillaries? A) absorb the excess protein-containing interstitial fluid B) returns interstitial fluid to the bloodstream C) delivers leaked red blood cells to capillaries D) have minivalves and protein filaments E) they can uptake pathogens and cancer cellsarrow_forwardWhich of the following is a function of the Lymphatic System? A) production and storage of lymphocytes B) maintaining blood volume by returning fluids from the tissues to the blood C) regulating the composition of the interstitial fluid D) all of the above.arrow_forwardLymph vessel walls are very thin. Why? a) The thin walls allow the bacteria to flow from the lymph to the blood b) The thin walls prevent bacteria from getting trapped in the lymph c) The thin walls allow the inter-cellular fluid to flow into the capillary vesselsarrow_forward
- Stem 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_forwardIdentify the incorrect statment about lymphatic system (A) Lymphatic capillaries have valves to ensure unidirctional flow (B) 72% of total blood fluid leaks out and needs to be returened each day (C) lymph is filtered at the lymph nodes (D) heutrophils are the main phagocyte found in lymph nodesarrow_forwardDevelopmentally, the embryonic lymphatic vessels are most closely associated with the (a) veins, (b) arteries, (c) nerves, (d) thymus.arrow_forward
- Which statement best describes the location and flow of lymph in a healthy animal? a.) Lymph is blood that has had its cellular components removed and flows through the spleen to be filtered. b.) Lymph is the immune-specific portion of blood and is pumped throughout the body in the arteries, capillaries, and veins. c.) Lymph is extracellular fluid that passes through lymph nodes before being mixed with the blood. d.) Lymph is musuc throughout many parts of the body that helps trap foreign perticles and is expelled before they can invade the body.arrow_forwardIt 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.arrow_forwardWhat is the correct sentence of events in the circulation of blood? A) Heart - arteries- arterioles- capillaries- venules- lymph- heart B) Heart- arteries- arterioles- capillaries- veins- venules- heart C) Heart- arteries- arterioles- capillaries- venules- veins- heart D) Heart- arterioles- arteries- capillaries- venules- veins- heartarrow_forward
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