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Ch 10 Quiz 2
Ch 10 Quiz 2
24
Anatomy
11th Grade
02/09/2012

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Term
antigen
Definition
a substance that the body recognizes as foreign; it stimulates the immune system to release antibodies; foreign proteins
Term
antibody
Definition
specialized substance produced by the body that can provide immunity against a specific antigen
Term
agglutination
Definition
foreign red blood cells clump due to binding antibodies
Term
ABO blood groups
Definition
based on which two antigens; type A or type B, a person inherits
Term
hematopoiesis
Definition
blood cell formation occurs in red blood cells
Term
hemocytoblast
Definition
a stem cell that resides in the red bone marrow and produces all the formed elements of the blood; forms lymphoid stem cells and myeloid stem cells
Term
erythropoientin
Definition
a hormone that controls the rate of erythrocyte production
Term
hemostasis
Definition
stoppage of bleeding;
three phases-vascular spasms, platelet plug formation, coagulation
Term
antigen
Definition
a substance that the body recognizes as foreign; it stimulates the immune system to release antibodies; foreign proteins
Term
antibody
Definition
specialized substance produced by the body that can provide immunity against a specific antigen
Term
agglutination
Definition
foreign red blood cells clump due to binding antibodies
Term
hemolysis
Definition
rupture of red blood cells
Term
ABO blood groups
Definition
based on which two antigens; type A or type B, a person inherits
Term
hematopoiesis
Definition
blood cell formation occurs in red blood cells
Term
hemocytoblast
Definition
a stem cell that resides in the red bone marrow and produces all the formed elements of the blood; forms lymphoid stem cells and myeloid stem cells
Term
erythropoientin
Definition
a hormone that controls the rate of erythrocyte production
Term
hemostasis
Definition
stoppage of bleeding;
three phases-vascular spasms, platelet plug formation, coagulation
Term
vascular spasms
Definition
spasms narrow the blood vessel at the point of the injury, decreasing blood loss until clotting occurs; 1st stage of hemostasis
Term
platelet plug forms
Definition
platelets become sticky and cling to the damaged site; then they release chemicals that cause vascular spasms and attract more platelets to the site; second stage of hemostasis
Term
coagulation
Definition
blood coagulates; third stage of hemostasis
Term
tissue factor
Definition
a substance that plugs an important roll in clotting
Term
thrombus
Definition
a clot that develops and persists in an unbroken blood vessel
Term
petechiae
Definition
small purple-ish blotches
Term
hemophilia
Definition
an inherited clotting defect caused by the absence of a blood-clotting factor
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