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