Ch 9 Flashcards
define antibody
protective agent produced in B lymphocytes in response to the presence of a specific foreign substance (antigen)
define antigen
substance recognized as harmful to the host
define bile pigment
substance derived from the breakdown of hemoglobin and excreted by the liver
define cytokine
chemical substance produced by certain cells that initiates, inhibits, increases, or decreases activity in other cells
define dendritic cell
monocyte that displays antigens on ints cell surface and presents them to components of the immune system
define immunocompetent
pssessing the ability to develop an immune response
define natural killer cells
lymphocytes that destroy virally infected cells a tumor cells
aden/o
gland
agglutin/o
clumping, gluing
blast/o
embryonic cell
chrom/o
color
granul/o
granule
immun/o
immune, immunity, safe
morph/o
form, shape, structure
poikil/o
varied, irregular
sider/o
iron
-blast
embyronic cell
-globin
protein
-phil
attraction for
-phylaxis
protection
aniso-
unequal
define amenia
a deficiency in the number of erythrocytes or the amount of hemoglobin within the blood cells
define allergy
abnormal immune response
define autoimmune disease
when the immune system fails to accurately differentiate foreign antigens from the body’s own antigens and begins its destructive behavior to the detriment of the indivudual
define leukemia
when the body replaces healthy blood and bone marrow cells with immature nonfunctional cells
define AIDS
infectious disease caused by the HIV virus that destroys the CD4 cells of the immune system such that the pt falls victim to infections the wouldnt normally
define coagulation disorder
any disruption in the ability to form blood clots or control bleeding
define disseminated intravascular coagulation
abnorm blood clotting in small vessels throughout the body that cuts of oxygen supply to tissues
define hemophilia
congenital hereditary disorder characterized by a deficiency in a clotting factorresulting in prolonged bleeding
