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28 Cards in this Set

  • Front
  • Back
Hematology

Study of blood
Erythrocyte

RBC; biconcave disc with no nucleus; contains hemoglobin
Leukocyte

WBC; protects the body
Platlet

small colorless disc shaped cells without a nucleus, found in large numbers in blood; involved in clotting
Hemopoiesis
Production of blood cells and platlets; occurs in bone marrow
Homocytoblast

blood stem cell
Hypoxia

deficiency in the amount of oxygen reaching the tissues
Hematocrit

the ratio of volume of red blood cells in comparison to the total volume of blood
Granulocyte

WBC with granules (3 types)
Erythropoisesis
Production of RBC
Hemolysis
destruction or rupture of RBC
Hemostasis
the stop of blood flow/bleeding; the opposite of hemorrhaging
Agranulocyte

WBC without granules; mononuclear (2 types)
Coagulation
blood clotting to a solid for repair
Fibrin

protein formed from fibrogen during clotting of blood, fibrous mesh impedes blood flow; sticky
Hemophilia

a sex-linked genetic disorder in which bleeding is excessive and clotting is insufficient
Serum

amber-colored, protein rich liquid that separates out when blood coagulates
Elastin

a protein that coils and recoils and accounts for the elasticity of structures
Atherosclerosis

disease of the arteries characterized by plaque on the inner wall; hardening of arteries
Arteriole

small branch of an artery leading to a capillary
Precapillary Sphincter
a band of smooth muscle that adjusts blood flow into the capillaries
Fenestra

a small natural hole or opening
Venule

a small vein especially one collecting blood from the capillaries
Flow
amount of fluid that passes through an organ or part in a specific amount of time; mL/min
Vasoconstriction
constriction of blood vessels, which increases blood pressure
Vasodialation
the dilation of blood vessels, which decreases blood pressure
Diapedesis
passage of blood cells through the intact wall of the capillaries; typically accompanying inflammation
Metarteriole

a short vessel that links arterioles and capillaries