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Medical Terminology
Blood and Lymph system terms
62
Medical
Undergraduate 1
04/01/2007

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Term
erythrocytes
Definition
red blood cells
Term
hematopoiesis
Definition
process of creating erythrocytes
Term
hemocytoblast
Definition
stem cell
Term
hemoglobin
Definition
protein that fills erythrocytes: carry O2 and CO2
Term
leukocytes
Definition
protect the body from infectious microorganisms
Term
lymph
Definition
yellowish fluid of the lymphatic system
Term
lymph nodes
Definition
remove foreign materials as lymph passes through
Term
lymphatic vessels
Definition
carry lymph
Term
pathogen
Definition
disease-causing agents
Term
toxin
Definition
poisonous substances that interfere with cell function
Term
antibody
Definition
selectively bind to antigens
Term
antigen
Definition
any foreign substance against which an immune response is directed
Term
coagulation
Definition
blood clotting
Term
phagocytosis
Definition
the process of "cell eating"
Term
plasma
Definition
fluid that is thicker than water
Term
platelets (thrombocyte)
Definition
prevent fluid loss after an injury
Term
serum
Definition
plasma without fibrinogen
Term
spleen
Definition
one of the lymphatic organs
Term
anisocytosis
Definition
red blood cells of unequal size
Term
bacteremia
Definition
bacterial presence in the blood stream
Term
erythropenia
Definition
abnormally reduced number of red blood cells
Term
hemolysis
Definition
red blood cell membrane rupture
Term
hemorrhage
Definition
loss of blood from the circulation
Term
macrocytosis
Definition
abnormally large red blood cells
Term
polycythemia
Definition
abnormal red blood cell increase
Term
splenomegaly
Definition
abnormal spleen enlargement
Term
toxemia
Definition
buildup of toxins in the blood
Term
allergy
Definition
a response to an allergen
Term
anaphylaxis
Definition
an immediate reaction with rapid inflammation
Term
anemia
Definition
reduced ability of red blood cells to deliver O2
Term
dyscrasia
Definition
abnormal condition of the blood
Term
ertyhroblastosis fetalis
Definition
fetus with RH+ blood, mother with RH-, mother's leukocytes attack baby's erythrocytes
Term
hemochromatosis
Definition
excessive accumulation of iron deposits
Term
hemophilia
Definition
bleeding disorder - defective clotting proteins
Term
iron deficiency anemia
Definition
lack of iron causing smaller red blood cells
Term
leukemia
Definition
red bone marrow cancer
Term
lymphadenitis
Definition
lymph node inflammation
Term
lymphadenopathy
Definition
disease of the lymph nodes (onset of AIDS)
Term
lymphoma
Definition
tumor of lymphatic tissue
Term
nosocomial infections
Definition
bacterial infection contracted during a hospital stay
Term
pernicious anemia
Definition
inadequate supply of folic acid; erythrocytes large, irregular shape, and reduced number
Term
septicemia
Definition
systemic disease - bacteria and toxins in circulating blood
Term
sickle cell anemia
Definition
defective hemoglobin, sickle shaped blood cells
Term
antibiotic
Definition
therapeutic treatment - effective for killing bacteria
Term
anticoagulant
Definition
reduces the clotting process
Term
autologous transfusion
Definition
blood donated by patient (in preparation for an operation)
Term
hematocrit
Definition
measures % red blood cells in a volume of blood
Term
hematology
Definition
field of medicine focusing on blood-related disease
Term
homologous transfusion
Definition
blood donated by another person
Term
lymphadenectomy
Definition
excision of a lymph node
Term
lymphangiogram
Definition
x-ray photograph of lymphatic vessels
Term
splenectomy
Definition
spleen excision
Term
thrombolysis
Definition
process of dissolving a blood clot
Term
acute
Definition
short, severe
Term
chronic
Definition
lasts over time
Term
benign
Definition
noncancerous
Term
malignant
Definition
cancerous
Term
degenerative disease
Definition
condition that worsens over time
Term
diagnosis
Definition
identification of a disease or condition
Term
malaise
Definition
general feeling of unwellness
Term
sign
Definition
objective, measurable indicator of disease
Term
symptom
Definition
subjective perception indicating an illness
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