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The Lymphatic System

Lymphatic Capillaries vessels where lymph flow begins
Lymphatic Vessels larger continuations of the of capillaries; carry lymph to the heart
Lymph Nodes masses of lymphoid tissue; concentrated in armpits, neck, groin, and abdominal cavity
Spleen filters and removes foreign particles and worn out cells
Thymus Gland soft, bi-lobed structure located in the thoracic cavity; composed of lymphoid tissue
Tonsils located in mouth and throat, composed of lymphoid tissue
Red Bone Marrow site of B-Lymphocytes
Components of Immunity antigens and antibodies
Antigens foreign substances that stimulate an immune response
Antibodies proteins produced by cells that react with antigens
Lymphocytes white blood cells involved in the immune response
Immunocompetence programming of lymphocytes
T-cells undergo development in the thymus gland and then migrate to the lymphoid tissue; bind to specific antigens
Killer T-cells destroy virus infected cells, cancer cells, and foreign cells
Helper T-cells Stimulate the defense activities of other lymphocytes
Suppressor T-cells Slows down and eventually stops the defense mechanisms
Memory T-cells stores information about a specific antigen for the next encounter
B Cells Undergo development in the red bone marrow or Peyer´s patches and then migrate to lymphoid tissue
Plasma Cells synthesize and release antibodies
Memory B-Cells stores information about the specific antigen for the next encounter
AIDS disease caused by HIV; destroys T-Cells
Measles highly communicable disease characterized by fever, general malaise, sneezing, nasal congestion, etc.; caused by virus
Mumps inflammation of the parotid and other salutatory glands
Rubella resembles both scarlet fever and measles; also known as German Measles
Tetanus disease due to the toxin clostidium tetani; may cause lockjaw and muscle and paralysis
Created by: anniebrimley



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