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: AN INTEGRATIVE APP
- An increase in lymphocytes may mean a problem associated with. a. clotting b. immunity C. pulmonary circulation d. systemic circulationarrow_forwardWhich of the following is the correct sequence 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_forwardFluid found in lymphatic vessels is known as:- a. interstitial fluid. b. plasma. c. lymph. d. intracellular fluidarrow_forward
- Explain 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_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_forwardAging and damaged erythrocytes are removed from the circulation by a. myeoblasts b. monocytes c. macrophages d. mast cellsarrow_forward
- A primary function of lymphatic vessels is: a. the circulation of white blood cells b. act as a shock absorber for the brain c. transport extracellular fluid for filtration d. to regulate fluid through the digestive tract e. the return of blood from the capillaries to the heartarrow_forwardWhich of the following is/are false about the lymphatic system? A. It is a vascular system that takes up excess interstitial fluid and transports it to the bloodstream. B. It drains into the circulatory system via two large ducts that drain into veins near the shoulders. C. Among its components is the network of tiny lymphatic vessels that intermingle among capillaries of the cardiovascular system. D. A pump delivers lymph through the lymphatics. E. C and D onlyarrow_forwardWhich statement is accurate about lymph nodes? a. Lymph nodes do not become swollen and tender. b. Lymph nodes filter blood. c. Lymph enters the lymph node through afferent lymphatic vessels. d. Lymphatic sinuses are located in the cortex of a lymph node only.arrow_forward
- A. When heart muscles due we have a heart attack. Death is usually from lack of O2… but how can that be when the heart is full of blood? B. LYMPHATIC: What is the lymphatic system and how is it linked to the circulatory system?arrow_forwardProthrombin which helps in clotting of blood is released by: A. lymphocytes B. erythrocytes C. monocytes D. blood plateletsarrow_forwardWhich type of lymph vessel consists solely of an endotheliumand has one-way flaps that allow interstitial fluid to enter?a. lymphatic vesselb. lymphatic capillaryc. lymphatic ductd. lymphatic trunkarrow_forward
