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Medical Vocab Ch #13 Blood System
Medical Coding & Billing Word Structures & Vocab.
160
Medical
Undergraduate 1
06/07/2010

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Term
Acute lymphocytic leukemia
Definition
Malignant, immature lymphocytes multiply in the blood, bone marrow, and lymphatic system.
Term
Acute myelogenous leukemia
Definition
Malignant, immature granulocytes called myeloblasts multiply in the bone marrow and bloodstream.
Term
Albumin
Definition
Protein found in blood.
Term
all/o
Definition
other, diferent
Term
anis/o
Definition
size
Term
anisocytosis
Definition
Abnormal condition of unequal size of cells (erythrocytes).
Term
Antibody
Definition
Protein made by white blood cells in response to foreign substances (antigens) in the blood.
Term
anticoagulant
Definition
A substance that works against coagulation (blood clotting).
Term
Antigen
Definition
Foreign agent that stimulates the production of an antibody.
Term
Antiglobulin test
Definition
Test for the presence of antibodies that coat and damage erythrocytes; Coombs test.
Term
Apheresis
Definition
Withdrawal and separation of blood elements.
Term
-aphersis
Definition
removal, a carrying away
Term
Aplastic anemia
Definition
Failure of blood cell production due to aplasia (absence of formation) of bone marrow cells.
Term
Autologous transfusion
Definition
Removal and then reinfusion of a patient’s own blood or blood components.
Term
bas/o
Definition
base (alkaline, the opposite of acid)
Term
basophil
Definition
White blood cell with dark-staining granules that have an affinity for basic dyes.
Term
Bilirubin
Definition
Orange-yellow pigment found in bile. It is released from the breakdown of hemoglobin when red blood cells die.
Term
-blast
Definition
immature cell, embryonic
Term
Bleeding time
Definition
Time required for blood to stop flowing from a tiny puncture wound.
Term
Blood transfusion
Definition
Blood cells or whole blood from a closely match donor are infused into a patient.
Term
Bone marrow biopsy
Definition
Needle aspiration of a small amount of bone marrow followed by examination under a microscope.
Term
chrom/o
Definition
color
Term
Chronic lymphocytic leukemia
Definition
Malignant, but relatively mature lymphocytes, multiply in bone marrow, lymph nodes, and spleen.
Term
Chronic myelogenous leukemia
Definition
Malignant, but relatively mature granulocytic leukocytes multiply in the bloodstream.
Term
coagul/o
Definition
clotting
Term
Coagulation
Definition
Process of blood clotting.
Term
Coagulation time
Definition
Time required for venous blood to clot in a test tube.
Term
coagulopathy
Definition
Disease of the clotting process
Term
Colony-stimulating factor
Definition
Protein that stimulates the growth and proliferation of white blood cells (granulocytes).
Term
Complete blood count
Definition
Determination of the number of red and white blood cells, platelets, hemoglobin, hematocrit, and red cell indices (MCH, MCV, MCHC) in a sample of blood.
Term
-crit
Definition
to separate
Term
cyt/o
Definition
cell
Term
cytology
Definition
Study of cells.
Term
-cytosis
Definition
abnormal condition of cells (increase in cells)
Term
Differentiation
Definition
Specialization of cells from immature to mature forms.
Term
Dyscrasia
Definition
Blood disease.
Term
Ecchymoses
Definition
Large blue or purplish patches on the skin (bruises).
Term
Electrophoresis
Definition
Technique used to separate serum proteins by electrical charge.
Term
-emia
Definition
blood condition
Term
eosin/o
Definition
red, dawn, rosy
Term
eosinophil
Definition
White blood cell with dark-staining granules that have an affinity for acid dyes;  granules turn red (eosin) in the presence of dye.
Term
eosinophilia
Definition
Increase in numbers of eosinophils.
Term
erythr/o
Definition
red
Term
erythroblast
Definition
Immature red blood cell.
Term
Erythrocyte sedimentation rate
Definition
Measurement of the speed at which erythrocytes settle or fall to the bottom of a test tube.
Term
erythrocytopenia
Definition
Deficiency of red blood cells.
Term
erythropoiesis
Definition
Formation of erythrocytes.
Term
Fibrin
Definition
Protein threads that form the basis of a blood clot.
Term
Fibrinogen
Definition
Plasma protein that is converted to fibrin in the clotting process.
Term
-genous
Definition
pertaining to, produced in
Term
-globin
Definition
protein
Term
-globulin
Definition
protein
Term
Globulins
Definition
Major blood proteins; immunoglobulins, alpha, beta and gamma globulins are examples.
Term
granul/o
Definition
granules
Term
granulocyte
Definition
White blood cell with large, dark-staining granules in its cytoplasm.
Term
granulocytopenia
Definition
Deficiency of granulocytes (white blood cells).
Term
Granulocytosis
Definition
Increased numbers of granulocytes in the blood.
Term
hem/o
Definition
blood
Term
hemat/o
Definition
blood
Term
hematocrit
Definition
Separation of blood; percentage of red blood cells in a given volume of blood.
Term
hematopoiesis
Definition
Formation of blood cells.
Term
Hematopoietic stem cell transplant
Definition
Peripheral (found in the blood) stem cells from a compatible donor are administered into the vein of a recipient.
Term
Hemochromatosis
Definition
Excessive deposits of iron throughout the body.
Term
hemoglobin
Definition
Blood protein in erythrocytes; enables the cell to carry oxygen.
Term
Hemoglobin test
Definition
Total amount of hemoglobin in a sample of blood.
Term
hemoglobin/o
Definition
hemoglobin
Term
hemoglobinopathy
Definition
Disease of abnormal hemoglobins (sickle-cell anemia, thalassemia).
Term
hemolysis
Definition
Destruction of blood cells.
Term
Hemolytic anemia
Definition
Reduction in erythrocytes due to excessive destruction of red blood cells.
Term
Hemophilia
Definition
Hereditary disease of blood clotting failure with abnormal bleeding. Affected individuals are lacking a blood clotting factor (factor VIII or factor IX).
Term
hemostasis
Definition
Stoppage of the flow of blood.
Term
Heparin
Definition
Anticoagulant found in blood and tissues.
Term
hypochromic
Definition
Pertaining to deficiency of color (reduction of hemoglobin in red blood cells).
Term
Immune system
Definition
Response of the immune system to foreign invasion.
Term
immunoglobulin
Definition
Protein (antibody produced by plasma cells) that acts to protect the body by destroying antigens.
Term
Intrinsic factor
Definition
Substance normally found in gastric (stomach) juice that helps absorption of vitamin B12 into the bloodstream.
Term
is/o
Definition
same, equal
Term
kary/o
Definition
nucleus
Term
leuk/o
Definition
white
Term
leukapheresis
Definition
Removal of white blood cells from the rest of the blood by centrifugation.
Term
leukemia
Definition
Abnormal condition of white blood cells (increase in numbers of malignant cells).
Term
Leukocyte
Definition
White blood cell.
Term
leukocytopenia
Definition
Deficiency of white blood cells.
Term
Lymphocyte
Definition
White blood cell with a single nucleus (mononuclear); capable of producing antibodies.
Term
-lytic
Definition
pertaining to destruction
Term
macrocytosis
Definition
Abnormal condition (slight increase in numbers) of macrocytes (red blood cells that are larger than normal).
Term
macrophage
Definition
Large cell (in blood and tissues) that eats (engulfs) other cells; derived from a monocyte.
Term
megakaryocyte
Definition
Cell with multiple large nuclei; immature platelet.
Term
microcytosis
Definition
Abnormal condition (slight increase in numbers) of microcytes (red blood cells that are smaller than normal).
Term
mon/o
Definition
one, single
Term
monoblast
Definition
Immature white blood cell (monocyte).
Term
monocyte
Definition
White blood cell with one large nucleus; an agranulocyte and phagocyte.
Term
mononuclear
Definition
Pertaining to a white blood cell with one large nucleus (monocyte or lymphocyte).
Term
Mononucleosis
Definition
Infectious disease marked by increased numbers of leukocytes and enlarged cervical lymph nodes.
Term
morph/o
Definition
shape, form
Term
morphology
Definition
Study of shape or form (of blood cells).
Term
Multiple myeloma
Definition
Malignant tumor of bone marrow; overproduction of immunoglobulins and destruction of bone tissue.
Term
myel/o
Definition
bone marrow
Term
myeloblast
Definition
Bone marrow cell that develops into a myelocyte and then a leukocyte.
Term
myelogenous
Definition
Pertaining to formed in the bone marrow
Term
myeloid
Definition
Derived from bone marrow.
Term
myelopoiesis
Definition
Formation of bone marrow.
Term
neutr/o
Definition
nuetral (neither base nor acid)
Term
neutropenia
Definition
Deficiency in neutrophils.
Term
Neutrophil
Definition
White blood cell with dark granules that stain with a neutral dye; phagocyte formed in the bone marrow and the body’s first line of defense against disease.
Term
neutrophilia
Definition
Increase in numbers of neutrophils.
Term
nucle/o
Definition
nucleus
Term
-oid
Definition
derived from
Term
-osis
Definition
abnormal condition
Term
Palliative
Definition
Relieving, but not curing illness.
Term
-pan
Definition
all
Term
pancytopenia
Definition
Deficiency of all (blood) cells.
Term
Partial thromboplastin time
Definition
Measurement of presence of plasma factors that act in a portion of the coagulation pathway.
Term
-penia
Definition
deficiency
Term
-penia
Definition
deficiency
Term
Pernicious anemia
Definition
Lack of mature erythrocytes caused by inability to absorb vitamin B12 into the body.
Term
Petechiae
Definition
Small, pinpoint hemorrhages caused by bleeding under the skin.
Term
phag/o
Definition
eat, swallow
Term
-phage
Definition
eat, swallow
Term
phagocyte
Definition
Cell that ingests other cells or microorganisms.
Term
-phil
Definition
attraction for
Term
-philia
Definition
attraction for (an increase in cell numbers)
Term
-philia
Definition
attraction to
Term
-phoresis
Definition
carrying, transmission
Term
Plasma
Definition
Liquid portion of blood containing proteins, water, salts, nutrients, hormones and vitamins.
Term
plasmapheresis
Definition
Removal of plasma from the rest of the blood by mechanical means (centrifuge).
Term
Platelet
Definition
Clotting cell or thrombocyte.
Term
Platelet count
Definition
Number of platelets per cubic millimeter (mm3 ) or microliter ( L) of blood.
Term
plateletpheresis
Definition
Removal of platelets from the rest of the blood by centrifugation.
Term
-poiesis
Definition
formation
Term
poikil/o
Definition
varied, irregular
Term
poikilocytosis
Definition
Irregularity in the shape of red blood cells.
Term
Polycythemia vera
Definition
Increase in numbers of red blood cells (erythremia).
Term
polymorphonuclear
Definition
Pertaining to a white blood cell with a multilobed nucleus (neutrophil).
Term
Prothrombin
Definition
Plasma protein converted to thrombin in the clotting process.
Term
Prothrombin time
Definition
Test of the ability of blood to clot.
Term
Purpura
Definition
Multiple pinpoint hemorrhages and accumulation of blood under the skin caused by deficiency of clotting cells (platelets).
Term
Red blood cell count
Definition
Number of erythrocytes per cubic millimeter or microliter of blood.
Term
Red blood cell morphology
Definition
Microscopic examination of a stained blood smear to determine the shape of individual red blood cells.
Term
Relapse
Definition
Return of symptoms of disease.
Term
Remission
Definition
Disappearance of symptoms of disease.
Term
Reticulocyte
Definition
Immature erythrocyte with a network of strands (reticulum).
Term
Rh factor
Definition
Antigen (protein) on red blood cells of Rh positive individuals.
Term
Serum
Definition
Plasma minus clotting proteins (prothrombin and fibrinogen) and clotting cells.
Term
Sickle cell anemia
Definition
Hereditary condition marked by abnormal sickle shape of erythrocytes and by hemolysis.
Term
sider/o
Definition
iron
Term
sideropenia
Definition
Deficiency in iron in serum.
Term
sper/o
Definition
globe, round
Term
Spherocytosis
Definition
Increase in numbers of sphere-shaped red blood cells, as in a type of anemia (hemolytic anemia).
Term
-stasis
Definition
stop, control
Term
Stem cell
Definition
Unspecialized cell that gives rise to all forms of specialized cells in the body. Hematopoietic stem cells are found in the bone marrow and lead to the development of all types of blood cells.
Term
Thalassemia
Definition
Inherited defect in the ability to produce hemoglobin, usually seen in persons of Mediterranean background.
Term
thromb/o
Definition
clot
Term
Thrombin
Definition
Enzyme necessary for blood clotting (converts fibrinogen to fibrin in the clotting process).
Term
Thrombocyte
Definition
Platelet; clotting cell.
Term
thrombocytopenia
Definition
Deficiency of clotting cells.
Term
thrombolytic therapy
Definition
Treatment that destroys blood clots.
Term
thrombosis
Definition
Abnormal condition of clotting.
Term
White blood cell count
Definition
Number of leukocytes per cubic millimeter or microliter of blood.
Term
White blood cell differential
Definition
Percentage of the total white blood cell count made up by different types of leukocytes.
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