Ch. 7.9 Key Terms
cisterna
a resevoir for fluid
immunity
transports, filters, and removes pathogenic or disease-producing microrganisms and produces antibodies and lymphocytes to fight infection
lacteals
specialized lymphatic capillaries, called lacteals that pick up digested fats or lipids
lymph
thin, watery fluid composed of intercellular, or interstitial fluid that forms when plasma diffuses into tissue spaces
lymph nodes
small, round or oval masses ranging in size from that of a pinhead to that of an almond
lymphatic system
consists of lymph, lymph vessels, lymph nodes, and lymphatic tissue; works in conjunction with the circulatory system to remove wastes and excess fluids from the tissues
lymphatic vessels
located throughout the body in almost all of the tissues that have blood vessels
right lymphatic duct
a short tube that receives all of the purified lymph to the blood
spleen
an organ located beneath the left side of the diaphragm and in the back of the upper part of the stomach
throacic duct
a large tube that drains the lymph from the rest of the body, empties into the subclavian vein
thymus
mass of lymph tissue located in the center of the upper chest; wastes away after puberty and is replaced by fat and connective tissue
tonsils
two pads of lymphoid tissue located on either side of the back of the throat that help the body fight infection