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| Description: Tonsils Defense against bacteria and other _ i foreign agents it“ x f Right lymphatic duct Drains right upper portion of the body Thymus gland Site where certain white blood cells acquire means to chemically recognize specific foreign invaders Thoracic duct Drains most of the body Spleen Major site of antibody production; disposal site for old red blood cells and foreign debris; site of red blood cell formation in the embryo Some of the lymph vessels ‘ Return excess interstitial —— fiurd and reclaimabie solutes to the blood Some of the ' lymph nodes N “ Filter bacteria and , 1“"! many other agents of ~ l I 1 disease from iymph——‘—~ ix“ ’ Bone marrow . Marrow in some bones is production site for infection- fighting blood cells : ‘ (as well as red blood——‘ cells and platelets) A
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