Mt Ch. 6-Lymphatic & Immune Flashcards
what does the lymphatic system consist of?
lymphatic vessels, lymph nodes, spleen, thymus gland, and tonsils
lymph
tissue fluid inside a lymphatic vessel
lymphatic system function
collect excess tissue fluid throughout the body and return it to the circulatory system; works with immune system to form groups of cells, tissues, organs, and molecules that are primary defense against pathogens
lacteals
lymph vessels around the small intestines
lymphatic vessels
extensive network of ducts throughout the body; one way pipes transporting lymph from tissues toward thoracic cavity
lymphatic capillaries
beginning of lymphatic vessels; located in tissues. tissue fluid enters here to begin trip back to circulatory system
valves
ensure that lymph only moves forward once the capillaries merge into larger lymphatic vessels
lymphatic ducts
right and thoracic; where those larger vessels drain into
right lymphatic duct
smaller, drains the right arm and right side of the head, neck, and chest. empties lymph into right subclavian vein
thoracic duct
larger, drains lymph from the rest of the body and empies into the left subclavian vein
immunoglobulins
antibodies secreted by B cells. all antibodies are considered this and help protect the body and surfaces from invasion of bacteria
lymphedema
edema appearing in the extremities due to obstruction of lymph flow through lymphatic vessels
splenomegaly
enlarged spleen
anaphylactic shock
life-threatening condition resulting in a severe allergic reaction. circulatory and respiratory problems occur
tonsillitis
inflammation of the tonsils
