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31 Cards in this Set
- Front
- Back
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Neutrophil
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WBC; Essential in preventing or limiting bacterial infection via phagocytosis
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Monocyte
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WBC; Enters tissue as macrophage; highly phagocytic, especially against fungus; immune surveillance
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Eosinophil
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WBC; Involved in allergic reactions (neutralizes histamine); digests foreign proteins
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Basophil
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WBC; Contains histamine; integral part of hypersensitivity reactions
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Lymphocyte
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WBS; Integral component of immune system
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T lymphocyte
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WBC; Responsible for cell-mediated immunity; recognizes material as “foreign” (surveillance system)
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B lymphocyte
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WBC; Responsible for humoral immunity; many mature into plasma cells to form antibodies
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Plasma cell
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WBC;Secretes immunoglobulin (Ig, antibody); most mature form of B lymphocyte
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RBC (Erythrocyte)
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Carries hemoglobin to provide oxygen to tissues; average life span is 120 days
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Platelet (Thrombocyte)
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Fragment of megakaryocyte; provides basis for coagulation to occur; maintains hemostasis; average life span is 10 days
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leukocyte count
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5,000 to 10,000
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Hemostasis
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Hemostasis is the process of preventing blood loss from intact vessels and of stopping bleeding from a severed vessel. 0
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angular cheilosis
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cracking sore at corner of mouth
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aplasia
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lack of cellular development (eg, of cells within the bone marrow)
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band cell
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slightly immature neutrophil
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blast cell
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primitive WBC
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D-dimer
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test that measures fibrin breakdown; considered to be more specific than fibrin degradation products in the diagnosis of disseminated intravascular coagulation (DIC)
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erythrocyte sedimentation rate (ESR)
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laboratory test that measures the rate of settling of RBCs; elevation is indicative of inflammation; also called the “sed rate”
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erythropoietin
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hormone produced primarily by the kidney; necessary for erythropoiesis
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granulocyte
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granulated WBC (neutrophil, eosinophil, basophil); sometimes used synonymously with neutrophil
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histiocytes
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cells present in all loose connective tissue, capable of phagocytosis; part of the RES
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left shift, or shift to the left
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increased release of immature forms of WBCs from the bone marrow in response to need
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macrocytosis
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larger than normal RBCs
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mast cell
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cells found in connective tissue involved in defense of the body and coagulation
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myeloid
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pertaining to nonlymphoid blood cells that differentiate into RBCs, platelets, monocytes and macrophages, neutrophils, eosinophils, basophils, and mast cells
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myelopoiesis
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formation and maturation of cells derived from myeloid stem cell
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neutrophil
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fully mature WBC capable of phagocytosis; primary defense against bacterial infection
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pancytopenia
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abnormal decrease in WBCs, RBCs, and platelets
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thrombocytopenia
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lower than normal platelet count
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thrombocytosis
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higher than normal platelet count
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WBC
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white blood cells, leukocytes; cellular components of blood involved in defense of the body; subtypes include neutrophils, eosinophils, basophils, monocytes, and lymphocytes
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