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Lymphocyte that originates in the bone marrow and transforms into a plasma cell to secrete antibodies.
An immune response involving T lymphocytes; antigens are destroyed by direct action of cells, as opposed to by antibodies.
helper T cell
Lymphocyte that aids B cells in recognizing antigens and stimulating antibody production; also called T4 cell.
Immune response in which B cells transform into plasma cells and secrete antibodies.
Body's capacity to resist foreign organisms and toxins that can damage tissue and organs; humoral and cell-mediated immunity.
Antibodies such as IgA, IgE, IgC, IgM, and IgD that are secreted by plasma cells in humoral immunity.
Proteins that stimulate the growth of B or T lymphocytes and activate specific components of the immune response.
Fluid in the spaces between cells. This fluid becomes lymph when it enters lymph capillaries.
Thin, watery fluid found within lymphatic vessels and collected from tissues throughout the body.
Carrier of lymph throughout the body; lymphatic vessels empty lymph into veins in the upper part of the chest.
right lymphatic duct
Large lymphatic vessel in the chest that receives lymph from the upper right part of the body.
Lymphocyte that originates in the bone marrow but matures in the thymus gland; it acts directly on antigens to destroy them or produce chemicals such as interferons and interleukins that are toxic to antigens.
In the thymus, T lymphocytes learn to recognize and accept the body's own antigens as "self" or friendly.
Large lymphatic vessel in the chest that receives lymph from below the diaphragm and from the left side of the body above the diaphragm; it empties the lymph into veins in the upper chest.
Introduction of altered antigens to produce an immune response and protection against disease.
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