The Lymphatic and Immune System Exam Questions And Answers 100% Verified

The Lymphatic and Immune System Exam Questions And Answers 100% Verified Fluid that is found outside the circulatory system and also outside cells is A. lymph. B. plasma. C. interstitial fluid. D. intracellular fluid. - answerC. interstitial fluid. These lymph system structures are designed to ensure that foreign cells meet with lymphocytes. As such, they serve as outposts of the immune system. A. lymph nodes. B. lymph capillaries. C. lymphatic ducts. D. lymphatic trunks. - answerA. lymph nodes. Members of this kingdom are eukaryotic and unicellular. Some of them are pathogenic. A. Archaea B. Bacteria C. Protista D. Fungi - answerC. Protista All of the following are part of the first line of defense of the immune system EXCEPT A. phagocytes B. native bacteria C. mucous membranes D. intact skin - answerA. phagocytes These leucocytes kill by "touch killing." They contact a foreign cell and release perforins and they also cause apoptosis. A. B cells B. neutrophils C. helper T cells D. NK (natural killer) cells - answerD. NK (natural killer) cells What are the three parts of the lymphatic system? - answerlymph vessels/ lymphatics lymph lymph nodes interstitial fluid - answerfluid in the tissues between cells What are the functions of our lymphatic system? - answer- Transports lymph and "junk" from the tissues back to the cardiovascular system. - Filters the lymph fluid in lymph nodes to destroy pathogens as part of the immune system. - Nourishes cells in the lymphatic system. (Transport fats from the small intestine) What are the jobs of the lymphatic vessels? - answer- The lymphatic vessels provide a one- way system that carries lymph back toward the heart What are the types of lymphatic vessels? - answer- Lymph vessels (lymphatics) include the lymphatic capillaries, collecting vessels, (trunks,) and ducts. Lymphatic capillaries are similar to blood capillaries, except: - answer- they are very permeable (take up cell debris, pathogens, and cancer cells) and - they have endothelial cells that overlap to form one-way minivalves, that are anchored by collagen filaments, to preventing their collapse Lymphatic collecting vessels are similar to veins, except that they - answer- have thinner walls, with more internal valves - anastomose [uh-nas-tuh-mohz] more frequently Right lymphatic duct drains - answerthe right upper arm and the right side of the head and thorax Thoracic duct drains - answerthe rest of the body Lymphatic ducts empty into venous circulation where - answerat the junction of the internal jugular and subclavian veins on its own side of the body What causes lymph to move through the lymphatic vessels? - answer- the respiratory pump