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Lymph & Immune system vocab 1
Terms in this set (43)
The ability to recognize and remember specific antigens and mount an attack on them. Humoral (B cells) and cell-mediated immunity (T cells) are examples.
Mass of lymphatic tissue in the nasopharynx.
Protein produced by B cells to destroy antigens
Substance that the body recognizes as foreign; evokes an immune response. Most antigens are proteins or protein fragments found on the surface of bacteria, viruses, or organ transplant tissue cells.
Lymph nodes in the armpit (underarm).
B cell (B Lymphocyte)
Lymphocyte that matures into a plasma cell to secrete antibodies. The B refers to the bursa of Fabricius, an organ in birds in which B cell differentiation and growth were first noted to occur.
Lymph nodes in the neck region.
Set of proteins in the blood that help antibodies kill their target.
Proteins secreted by cytotoxic T cells to aid in antigen destruction. Examples are interferons and interleukins.
Cytotoxic T cell
Lymphocyte that directly kills antigens.
Antigen-presenting cell. Shows T and B cells what to attack.
Helper T cell
Lymphocyte that aids B cells and stimulates T cells.
B cells produce antibodies after exposure to specific antigens.
A type of adaptive immunity.
Body's ability to resist foreign organisms and toxins that damage tissues and organs. This includes natural immunity and adaptive immunity.
(IgA, IgE, IgG, IgM, and IgD)
Antibodies secreted by plasma cells (mature B cells) in response to the presence of an antigen.
Use of immune cells, antibodies, or vaccines to treat or prevent disease.
Lymph nodes in the groin region.
Proteins (cytokines) secreted by T cells and other cells to aid and regulate the immune response.
Proteins (cytokines) that stimulate the growth of B and T lymphocytes.
Abbreviated: IL1 TO IL38
Fluid in the spaces between cells.
Becomes lymph fluid when it enters lymph capillaries.
Clear, watery fluid that surrounds body cells and flows in a system of thin-walled vessels.
Filters out of the blood capillaries, into the spaces around the cells (interstitial fluid) and then into the lymph system.
Contains many Leukocytes called Lymphocytes and Monocytes.
Tiniest lymphatic vessels.
Begin at the spaces around cells throughout the body.
Carry lymph fluid from the tissue spaces to larger lymph vessels.
Lymph nodes, spleen, and thymus gland.
Collection of stationary lymph tissue located along the path of the lymph vessels.
Filter lymph fluid and trap substances from infectious, inflammatory, and cancerous lesions.
Contain specialized cells that help fight disease (macrophages, B cells and T cells).
Thicker walls than lymph capillaries.
Contain valves so that the fluid flows in only one direction, toward the thoracic cavity.
Large phagocyte found in lymph nodes and other tissues of the body.
Phag/o means to eat or swallow.
Lymph nodes in the area between the lungs in the thoracic cavity.
Lymph nodes in the mesentery (intestinal region).
Antibody produced in a laboratory to attack antigens and to destroy cells.
Useful in immunotherapy.
Protection that an individual is born with to fight infection such as neutrophils, monocytes, macrophages, and NK cells (Natural Killer).
Is NOT antigen specific and does not elicit memory.
Lymph nodes near the aorta in the lumbar area of the body.
Lymphocyte that secretes antibodies.
Matures from B lymphocytes.
Right Lymphatic Duct
Lymphatic vessel in the chest that drains lymph from the upper right part of the body.
Empties into large vein in the neck.
Located in the LUQ.
Destroys "old" erythrocytes by macrophages.
Filters microorganisms and other foreign material from the blood.
Suppressor T cell
Lymphycoty that inhibits the activity of B and T cells.
(AKA Regulatory T cell)
T Lymphocytes (T cells)
Located in lymph nodes.
Recognize, attack and destroy bacteria and other foreign cells directly or by producing chemicals (cytokines) such as interferons and interleukins that are toxic to antigens.
Assist B cells in producing antibodies.
Originate in the Thymus gland
The ability of T cells to recognize and accept the body's own antigens as "self" or friendly. Once tolerance is established, the immune system will not react against the body.
Large lymphatic vessel that drains lymph from the lower and left side of the body (head, neck, arm, and chest).
Empties lymph into the large veins in the neck.
Located in the upper mediastinum.
Largest during fetal life and childhood, decreases in size with age.
Responsible for developing tolerance: the recognition and acceptance of the body's own antigens. If this process fails, autoimmune disease can develop. (Immune cells react against normal cells)
Masses of lymphatic tissue in the back of the oropharynx.
Poison; a protein produced by certain bacteria, animals, or plants.
Exposure of an individual to a foreign protein (antigen)that provokes an immune response. The response will destroy any cell that possesses the antigen on its surface and will protect against infection.
Weakened or killed microorganisms, toxins, or other proteins given to induce immunity to infection or disease.
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