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Loss of structural differentiation with reversion to a more primitive type of cell
anaplasia
-
defective development or congenital absence of an organ or tissue
aplasia
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factor essential to normal blood clotting contained within the blood plasma; designated by Roman numerals I-V and VII to XIII; their absence, diminution, or excess may lead to abnormality of clotting
coagulation factor
-
record of number of white blood cells, including the determination of the percentage of each type of cell present; the "differential" is used in the diagnosis of various blood disorders, infections, and other abnormal conditions of the body
differential cell count
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hemorrhagic sopt larger than a petecia in the skin or mucous membrane; nonelevated, blue or purplish.
ecchymosis
-
hemorrhage from the nose
epistaxis
-
formation of red blood cells
erythropoiesis
-
inflammation of the tongue
glossitis
-
pain in the tongue
glossodynia
-
blood in a joint cavity
hemarthrosis
-
volume precentage of erythrocytes (red blood cells) in whole blood
hematocrit
-
the formation and development of blood cells, usually in bone marrow
hematopoiesis
-
protein in the erythrocyte that transports molecular oxygen to body cells
hemoglobin
-
oxygenated arterial blood; bright red and about 97% saturated with oxygen; venous blood is a darker color and contains only 20%-70% oxygen
oxyhemoglobin
-
rupture of erythrocytes with the release of hemoglobin into the plasma
hemolysis
-
diminished availability of oxygen to body tissues
hypoxia
-
lack of adequate amounts of oxygen that can result from the rapid diffusion of nitrous oxyde molecules from the bloodstream into the llungs. Occurs if 100% oxygen is not administered at the conclusion of a nitrous oxide sedation procedure
diffusion hypoxia
-
increase in the total number of leukocytes
leukocytosis
-
reductino in total number of leukocytes in the blood; coung under 500 per ml
leukopenia
-
destruction or decomposition, as of a cell, bacterium, or other substance
lysis
-
abnormally large red blood cell; contrasts with microcyte, abnormally small erythrocyte
macrocyte
-
young cell of the granulocyte series; occurs normally in bone marrow; found in circulating blood in certain diseases
myelocyte
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diminished number of neutrophils (polymorphonuclear leukocytes or PMNs)
neutropenia
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minute, pinpoint, round, nonraised, purplish-red spot in the skin or mucous membrane, caused by hemorrhage
petechia
-
engulfing of microorganisms and foreign particles by phagocytes, such as macrophages
phagocytosis
-
cell in connective tissue converted from B lymphocyte: involved in chronci inflammation and immune response
plamsa cell
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hemorrhage into the tissue, under the skin, and through the mucous membranes, produces petechiae and ecchymoses
prupura
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when circulating platelets are decreased
thrombocytic purpura
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