CIBTAC A+P QUESTIONS All Answered

CIBTAC A+P QUESTIONS All Answered tissue fluid leaves the capillaries via? - Answer -diffusion the lymphatic vessel that gathers most of the lymph is the? - Answer -thoracic duct the liquid which carries dissolved substances from capillaries to cells and back is the? - Answer -blood plasma the fluid between cells is driven along by? - Answer -pressure from contracting muscles surrounding how is lymph circulated? - Answer -a combination of skeletol muscle contraction and valves in the veins lymph is drained back into the bloodstream through the? - Answer -lymphatic ducts the lymphatic system relies on the muscular system for? - Answer -movement which body therapy machine relies on the muscular system? - Answer -vacuum suction T or F? lymphatic vessels do not contain valves: - Answer -false. the constituents of lymph are very similar too? - Answer -plasma what are the functions of the lymphatic system? - Answer -- filters lymph what constituents can leave the capillaries? - Answer -- leucocytes - food - water - oxygen what drains into the lymphatic capillaries instead of the blood capillaries? - Answer -- pressure is lower here - excess tissue fluid - micro organisms - foreign matter + damaged cells how is lymph described? - Answer -- clear - colourless fluid - derived from plasma how are micro organisms destroyed? - Answer -phagocytic monocytes and neutrophils engulf and destroy bacteria draining them to the lymphatic capillaries. what does an obstruction in tissue fluid cause? - Answer -oedema what is tissue fluid? - Answer -As blood passes through the blood capillaries some of the fluid oozes out through the capillary walls and bathes the tissues what do lymphatic capillaries eventually form? - Answer -they unite to form lymphatic vessels collecting excess tissue fluid. how are lymphatic capillaries described? - Answer -- thin permeable walls - orientate as minute blind end tubes - drain away excess tissue fluid how are lymphatic vessels described? - Answer -- one way valves directing lymph to the heart - knotted or beaded appearance - drain into the nodes what type of circulation is the lymphatic system? - Answer -subsidiary what are the lymphatic organs? - Answer -- spleen, thymus gland, adenoids, lymph nodes, appendix, bone marrow and tonsils what do lacteals do? - Answer -found in the villi of small intestine; absorb fat - emulsified by bile and carried to cisterna chilli