Chapter 9: Blood, Lymph, And Immune System Flashcards
Antigen
Substance, recognized as a harmful to the host, that stimulates formation of antibodies in an immunocompetent individual
Antibody
Protective protein produced by B lymphocytes in response to the presence of a foreign substance
Bile pigment
Substance derived from the breakdown of hemoglobin and excreted by the liver
Cytokine
Chemical substance produced by certain cells that intimates, inhibits, increases, or decreases activity in other cells
Immunocompetent
Ability to develop an immune response or recognize antigens and respond to them
Natural killer cells
Specialized lymphocytes that kill abnormal cells by releasing chemicals that destroy the cell membrane, causing its intercellular fluids to leak out
Plasma
Connective tissue composed of a liquid medium in which solid components are suspended
Erythrocytes
Red blood cells
Leukocytes
White blood cells
Thrombocytes
Platelets
Hematopoiesis
development of blood cells to their mature form
Hemoglobin
Specialized iron containing compound that gives erythrocytes their red color
Hemosiderin
Iron compound from hemoglobin that return to bone marrow and reused in a different form to manufacture new blood cells
Granulocytes
Leukocytes that contain visible granules in the cytoplasm
Agranulocytes
Leukocytes that lack visible granules in the cytoplasm
Mononuclear Leukocytes
Have nuclei that don’t form lobes
Monocytes
Mildly phagocytize when found in blood vessels however they remain in the vascular channels only a short time when they exit they transform into macrophages, dead cells, and other debris at sites of inflammation
Macrophages
Avid phagocytes capable of ingesting pathogens
Lymphocytes
Include B cells, T cells, and natural killer cells
B cells and T cells
Provide a highly specific body defense called acquired immunity I which lymphocytes recognize and destroy potential threats to your well being
Natural killer cells
Provide a generalized defense and respond whenever a potentially dangerous or abnormal cell is encountered and they kill by releasing potent chemicals
Platelets/ thrombocytes
Smallest formed elements found in blood that initiate blood clotting when they encounter damaged vessel walls that have been injured
Hemostasis
Control of bleeding
Thromboplastin
Substance that intimates clot formation
Fibrinogen
Soluble blood protein
Blood clot/ thrombus
Jelly like mass of blood cells and fibrin
Plasma
Liquid portion of blood in which blood cells are suspended
Plasma proteins
Albumins, globulins, fibrinogens
Serum
Fibrinogen and clotting elements are removed from the plasma and the resulting liquid is known as
Lymph system
Maintain fluid balance of the body by draining interstitial fluid from tissue spaces and returning it to the blood, transport lipids away from the digestive organs to use by body tissues, filter and remove unwanted or infectious products in lymph nodes
Interstitial/ tissue fluid
Fluid coming from the blood capillaries that resembles plasma but contains less protein
Lymph capillaries
Closed ended microscopic vessels where substance become lymph