Flashcards in Chap 14, Lymphatic and Immune Systems, Vocabulary Deck (44)
adaptive or acquired immunity
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.
T cells (cytotoxic, helper and suppressor) that respond to antigens and destroy them; a type of adaptive immunity.
Lymph nodes in the neck region.
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; call CD8-positive T cell.
Antigen-presenting cell. Shows T and B cells what to attack.
helper T cell
Lymphocyte that aids B cells and stimulates T cells. Also called CD4-positive T cell.
B cells produce antibodies after exposure to specific antigens; 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.
Antibodies such as IgM, IgA, IgG, IgE, IgD; 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.
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.
Tiniest lymphatic vessels.
Lymph nodes, spleen, and thymus gland.
Collection of stationary solid lymphatic tissue along lymph vessels; contains cells (lymphocytes and macrophages) that fight infection.
Carrier of lymph throughout the body; lymphatic vessels empty lymph into veins in the upper part of the chest.
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 (chest) 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. It is not antigen specific and does not elicit memory.
Lymph nodes near the aorta in the lumbar (waist) area of the body.
Lymphocyte that secretes antibodies. It matures from B lymphocytes.
right lymphatic duct
Lymphatic vessel in the chest that drains lymph from the upper right part of the body. It empties lymph into a large vein in the neck.
Organ in the left upper quadrant of the abdomen that destroys worn-out red blood cells, activates lymphocytes, and stores blood.
suppressor T cell
Lymphocyte that inhibits the activity of B and T cells. Also called a Treg (regulatory T cell).
T cell (T lymphocyte)
Lymphocyte that acts directly on antigens to destroy them or produce chemicals (cytokines) such as interferons and interleukins that are toxic to antigens.
The ability of T lymphocytes 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). It empties lymph into large veins in the neck.
Lymphoid organ in the mediastinum that conditions T cells to react to foreign cells and aids in the immune response.
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.