| A | B |
|---|
| anemia | a manifestation of a pathologic process characterized by a reduction below normal in the number of erythrocytes, quantity of hemoglobin, and/or the volume of packed red cells (hematocrit) in the blood. |
| aplastic anemia | a disease with a deficiency of all of the formed elements of blood (specifically red blood cells, white blood cells, and platelets), representing a failure of the cell-generating capacity of bone marrow. |
| bone marrow | the blood-forming tissue that fills the central core of bones. |
| disseminated intravascular coagulation (DIC) | a grave coagulopathy resulting from the overstimulation of clotting and anticlotting processes in response to disease or injury, such as septicemia, acute hypotension, poisonous snakebites, neoplasms, obstetric emergencies, severe trauma, extensive surgery, and hemorrhage. |
| ecchymosis | bruising. |
| erythrocyte | red blood cell. |
| eythropoiesis | process of red blood cell production. |
| fibrinolysis | a continual process resulting in the dissolution of fibrin to maintain blood in its fluid form. |
| hemachromatosis | an autosomal recessive disease characterized by increased intestinal iron absorption and, as a result, increased tissue iron deposition. |
| hematology | the study of blood and blood-forming tissues. |
| hematopoiesis | blood cell production. |
| hemoglobin | a complex protein-iron compound that is the major component of erythrocytes that carries oxygen to the cells from the lungs and carbon dioxide away from the cells to the lungs. |
| hemolysis | destruction of erythrocytes. |
| hemolytic anemia | an anemia caused by destruction of red blood cells (RBCs) at a rate that exceeds production. |
| hemophilia | hereditary bleeding disorders caused by defective or deficient clotting factors; classic hemophilia A is a sex-linked recessive genetic disorder caused by deficient factor VIII; hemophilia B is a deficiency of factor IX. |
| hemostasis | a homeostatic process of blood clotting and blood lysing. |
| Hodgkin's lymphoma | a malignant condition characterized by proliferation of abnormal giant, multinucleated cells, called Reed-Sternberg cells, which are located in lymph nodes. |
| iron deficiency anemia | a microcylic hypochromic anemia caused by inadequate supplies of iron needed to synthesize hemoglobin; characterized by pallor, fatigue, and weakness. |
| leucopenia | an abnormal decrease in the number of totak white bloods to <4000/ul |
| leukemia | a broad term given to a group of malignant diseases characterized by diffuse replacement of bone marrow with proliferating leukocyte precursors, affecting the blood and blood-forming tissues of the bone marrow, lymph system, and spleen. |
| leukocyte | white blood cell. |
| lymphomas | malignant neoplasms originating in the bone marrow and lymphatic structures resulting in the proliferation of lymphocytes. |
| megaloblastic anemias | a group of disorders caused by impaired DNA synthesis and characterized by the presence of large red blood cells. |
| multiple myeloma | a condition in which malignant neoplastic plasma cells infiltrate the bone marrow and destroy bone. |
| myelodysplastic syndrome | a group of related hematologic disorders characterized by a change in the quantity and quality of bone marrow elements. |
| neutropenia | an abnormal reduction of the neutrophil count to .‹ 1000/ul |
| non-Hodgkin's lymphoma | a heterogeneous group of malignant neoplasms involving lymphoid tissue. |
| pancytopenia | marked decrease in the number of red blood cells, white blood cells, and platelets. |
| pernicious anemia | a progressive megaloblastic macrocytic anemia resulting from inadequate gastric secretion of intrinsic factor necessary for absorption of cobalamin (vitamin B12). |
| petechiac | small purplish lesions. |
| phagocytosis | the process by which certain cells, such as a white blood cell, engulf and destroy microorganisms and cellular debris. |
| polycythermia | an abnormal condition with excessive levels of red blood cells. |
| reticulocyte | an immature erythrocyte characterized by a meshlike pattern of threads and particles at the former site of the nucleus; measurement of the number of reliculocytes is a useful means of evaluating the rate and adequacy of erythrocyte production. |
| sickle cell disease | sickle cell disease (no further definition provided). |
| stem cell | a formative cell; a cell whose daughter cells may give rise to other cell types, including blood cells. |
| thalassemia | an autosomal recessive genetic disorder of inadequate production of normal hemoglobin. |
| thrombocyte | platelet. |
| thrombocytopenia | a reduction of the platelet count below 100,000/ul. |
| thrombocytosis | a condition marked by excessive platelets: a disorder that occurs with inflammation and some malignant disorders |
