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Chapter 11: Blood

Study notes for Essentials of Human Anatomy and Physiology

Normoblast A red blood cell with a nusleus, an immature stage in red bllod cell formato usually found in the red bone marrow and not in the peripheal circulation.
Reticulocyte A Blood cell that contains remnants of the endoplasmic reticulum, an immature stage in red blood cell formation; makes up about 1% of the red blood cells in peripheral circulation.
Rh Factor The red blood cell types determined by the presence or absence of the Rh (D) antigen ont he red blood cell memebranes: the two types are Rh positive and Rh negitive
Thrombocyte Platelet, a fragment of a megakaryocyte.
Thrombus A blood clot that abstructs bllod flow through a bllod vessel
fibrin A thread-like protein formed by the action of thrombin on fibrinogen; the substance in which blood clots are made
Hematocrit The laboratory test that determines the percentage of red blood cells in a given volume of blood; part of a complete blood count
Hemophilia A hereditary blood disorder characterized by the inability of the blood to clot normally; hemophilia A is caused by a la k of clotting factor 8
RhoGam trade mane for rh(d) administered toan rh negitive women who has delivered an RH positive infant
Extrinsic Factor Vitamin B obtained from food and necessary for DNA synthesis, espically by stem cells in the red bone marrow
Inrinsic Factor A chemical produced by the parietal cells of the gastric mucosa;necessary for the absorption of vitamin B12
Pernicious Anemia An anemia that is the result of a deficiency of vitamin B12 or the intrinsic factor
Fibrin A thread-like protein formed by the action of thrombin on fibrinogen; the substance of which a clood clot is made.
ABO Group The red blood cell types determined by the presence or absence of A and B antigens on the red blood cell membrane; The 4 types are A, B, AB, and O.
Albumin A protien synthesized by the liver, which circulates in blood plasma.
Bilirubin The bile pigment produced from the heme portion of the hemoglobin of old red blood cells. Excreted by the liver in bile.
Chemical clotting A series of chemical reactions, stimulated by a rough surface or a break in a blood vessel, that result in the formation of a fibrin.
Embolism Obstruction of a blood vessel by a blood clot or foreign substance that has traveled to and lodged in that vessel.
Erythrocyte Red blood cell.
Hemoglobin The protein in a red blood cell that contains iron and transports oxygen in the blood.
Homeostasis The state in which the internal environment of the body remains relatively stable by responding appropriately to changes.
Heparin A chemical that inhibits blood clotting, an anticoagulant.
Leukemia Malignancy of blood-forming-tissues, in which large numbers of immature and nonfunctional white blood cells are produced.
Leukocytosis An elevated white blood cell count, often an indication of infection.
Macophage A phagocytic cell derived from monocytes that contributes to bouth innate and adaptive immunity
Rh Factor The red blood cell types determined by the presence or absence of the Rh (D) antigen on the red blood cell membranes two types our Rh positive and Rh negitive
Created by: DrPearson
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