Concept explainers
Introduction:
Lymphatic system comprises of cells, tissues and other organs which defend our body against infections and disease. It is also comprised of lymph-a clear fluid which is found outside the cells. Lymphatic system has lymphatic capillaries, vessels, ducts, and trunks. Lymphatic system is also comprised of lymphatic tissues or organs like, tonsils, lymph nodes and nodules, spleen, and MALT.
Answer to Problem 1DYB
Correct answer:
The lymphatic system is a part of the circulatory system and immune system that have interconnected lymphatic vessels which contain a clear fluid called lymph. Therefore, option b. is correct.
Explanation of Solution
Reason for the correct statement:
Option b. is given as “cardiovascular and immune”. The circulatory and immune systems are supported by the lymphatic system. The lymphatic fluid is consists of immune system cells that protect against infection and also the circulatory fluid blood is filtered by the spleen. Hence, immune and cardiovascular systems are the body systems which are supported by the lymphatic system.
Hence, option b. is correct.
Reasons for the incorrect statements:
Option a. is given as “cardiovascular and urinary”. Lymphatic system supports cardiovascular system but does not have any role with the urinary system. Hence, option a. is incorrect.
Option c. is given as “respiratory and cardiovascular”. Lymphatic system supports cardiovascular system but it does not supports the respiratory system. Hence, option c. is incorrect.
Option d. is given as “respiratory and urinary”. Lymphatic system supports circulatory and immune systems in body but does not have any function in either respiratory or urinary system. Hence, option d. is incorrect.
Hence, options a., c., and d. are incorrect.
Lymphatic system supports both circulatory and immune systems as they are interconnected. Lymphatic system provides immunity to cells, tissues and other organs which helps to defend the body against infections and disease. Lymphatic system also returns the fluid leaked from the blood back into the circulation.
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Chapter 21 Solutions
Anatomy & Physiology
- The lymphatic system collects fluid from tissues throughout the body and directs its flow toward the Select one: O a. pancreas b. heart C. gallbladder d. liver e. spleenarrow_forwardAn increase in lymphocytes may mean a problem associated with. a. clotting b. immunity C. pulmonary circulation d. systemic circulationarrow_forwardWhich of the following chemicals is released by the body that increases capillary permeability thereby producing excess mucous and fluids? a. Leukotriene b. Histamine 1 c. Histamine 2 d. Mast cellarrow_forward
- Which of the following is not true of the lymphatic system? Oxygen is transported to body tissues a. b. Slow muscular contractions cause the fluid to move in the vessels The lymph is returned to the veins C. d. There are flap-like valves to prevent the backflow of fluid O O O Oarrow_forwardExplain why each choice (a-d) is correct or incorrect The lymphatic capillaries are a. More permeable than blood capillaries b. Less permeable than blood capillaries c. As permeable as blood capillaries d. Completely impermeablearrow_forwardWhich of the following statements regarding the lymphatic system is not true? A. Lymph originates from excess cellular fluid B. Lymph nodes trap bacteria C. Swelling of the lymph nodes indicates dysfunction of the lymphatic system D. Swelling of the lymph nodes indicates proper functioning of the lymphatic systemarrow_forward
- Fluid found in lymphatic vessels is known as:- a. interstitial fluid. b. plasma. c. lymph. d. intracellular fluidarrow_forwardAll of the following can result in lymphedema (the accumulation of interstitial fluid due to interference with lymphatic drainage) except a. surgical removal of a group of lymph nodes. b. obstruction of lymph vessels that drain a lymph node, as might occur with a tumor or an infection. c. radiation therapy, which may cause scar formation of lymph vessels. d. exercise that increases the flow of lymph in the lymph vessels.arrow_forwardWhich of the following is not true of the lymphatic system? Oxygen is transported to body tissues a. b. Slow muscular contractions cause the fluid to move in the vessels The lymph is returned to the veins C. d. There are flap-like valves to prevent the backflow of fluid O O O Oarrow_forward
- Monocytes move from the systemic circulatory system into general connective tissues, where they differentiate into what phagocytic cell type? A.Macrophage B.T cell C.B cell D.Neutrophilarrow_forwardAging and damaged erythrocytes are removed from the circulation by a. myeoblasts b. monocytes c. macrophages d. mast cellsarrow_forwardMark the following statements as true or false. If a statement is false, correct it to make a true statement. a. Lymphatic vessels constitute a one-way system that delivers fluid from the blood vessels to the extracellular space. b. Lymph from the lower limbs drains into the right lymphatic duct. c. Fat-containing lymph from the intestines drains into the cisterna chyli. d. The thymus is the site of maturation of B cells. e. Clusters of MALT located around the oral and nasal cavities are known as Peyer’s patchearrow_forward
