Anatomy & Physiology
5th Edition
ISBN: 9780321861580
Author: Marieb, Elaine N.
Publisher: Pearson College Div
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Textbook Question
Chapter 19, Problem 12RQ
(a) Which anatomical characteristics ensures that the flow of lymph through a lymph node is slow? (b) Why is this desirable?
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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?
(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.
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.
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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- (a)Define formed elements and list their three major categories. (b) Which is least numerous?(c ) Which comprise(s) the buffy coat in a hematocrit tube?arrow_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_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) Describe the steps of erythrocyte formation in the bone marrow.(b) What name is given to the immature type of red blood cell that is newly released into the circulation?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_forwardWhere does this fluid (lymph) go once it enters the lymphatic vessels? What makes it flow?arrow_forward
- Identify 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_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_forwardDirectly after fluid leaks out a vessel into the surrounding tissue (due to ______ blood pressure) it gets a name change from plasma to ______ fill in the blank (A) low, interstitial fluid (B) high, lymph (C) high, interstitial fluid (D) low, lympharrow_forward
- Match the names of the blood cells in column B with their descriptions in column A. Some names are used more than once. Column A Column B(1) destroys parasites (a) erythrocyte(2) has two types of granules (b) neutrophil(3) does not use diapedesis (c) eosinophil(4) stops the allergic response (d) basophil (e) lymphocyte (f) monocyte (5) the only cell that is not spherical (6) granulocyte that phagocytizes bacteria (7) the largest blood cell (8) granulocyte with the smallest granules…arrow_forward1. (a)Where would you expect to find most of the plasma cells in a lymph node? (b)And What kinds of cells are in the cords of the Red Pulp?arrow_forward** SELECT ALL THAT APPLY Y^ ** Which of the following mechanisms help maintain lymph flow? a) pulsation lymphatic capillaries b) breathing d) capillary smooth muscle contraction e) valves in lymph vessel wallsarrow_forward
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