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Chapter 13
Blood
Term | Definition |
---|---|
anemia | a deficiency of red blood cells or hemoglobin |
basophil | the fewest of the WBC's; secretes heparin |
coagulation | blood clotting |
eosinophils | white blood cells that protect against parasites; also involved in allergic reactions |
erythrocytes | red blood cells |
erythropoietin | hormone secreted by the kidneys that stimulates the production of erythrocytes |
fibrin | insoluble protein fibers involved in forming a blood clot |
fibrinolysis | process of dissolution of a blood clot |
hematocrit | the percentage of red blood cells in a sample of blood |
hemoglobin | iron-containing pigment of red blood cells that carries oxygen |
hemolysis | the destruction of red blood cells |
hemopoiesis | the production of blood |
hemostasis | an arrest of bleeding |
leukocytes | white blood cells (WBC) |
leukocytosis | elevated white blood cell count |
leukopenia | abnormally low white blood cell count |
lymphocytes | second most numerous of the WBC's; responsible for long-term immunity |
monocytes | largest and most long-lived of the WBC's; highly phagocytic |
neutrophils | most abundant of the white blood cells; highly mobile |
plasma | the clear extracellular matrix of blood |
platelets | blood cell fragments that play a key role in stopping bleeding |
reticulocytes | an immature form of an erythrocyte |
serum | plasma without the clotting proteins |
viscosity | the thickness or stickiness of blood |