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Lymphatic & Immune System
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51
Anatomy
Undergraduate 2
05/09/2010

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Term
Left Subclavein Vein
Definition
Most of the lymph enters the blood stream into which vessel?
Term
Lymph Nodes
Definition
The only organs to filter lymph are _____?
Term
Spleen
Definition
The only lymphatic organt to filter blood is the _________?
Term
Thymus
Definition
The lymphatic organ that produces hormones and is involved in maturation of T Lymphocytes is the _______?
Term
Lysozyme
Definition
The bactericidal enzyme secreted in mucus membrane is _______?
Term
Hylauronidase
Definition
The enzyme secreted by certain pahtogens in that can dissolve the visous ground substance in areolar tissue is _______?
Term
Respiratory Burst
Definition
The release of superoxide (02-), hydrogen peroxide (H2O2), and hypocholorite ion HCLO-, by neurtrophils is referred to as a _____?
Term
Eosinophils
Definition
Type of leukocyte with antiparasite activity and is also linked to allergic response is ________?
Term
Natural Killer Cells
Definition
Lymphocyte that is active in nonspecific attack against viral or bacterial infected cells ________?
Term
Monocytes
Definition
Circulating leukocytes that are precursors to macrophages are ________?
Term
Basophils
Definition
Inflammatory leukocyte that releases histamine and heparin and attracts other WBCs to the area of inflammation are _________?
Term
Margination
Definition
Process of leukocytes adhering to wall of blood vessel is _________?
Term
Diapedesis
Definition
Process of leukocytes squeezing through capillary walls __________?
Term
Neutrophils
Definition
Type of leukocyte that is quickest to respond and begin phagocytosis?
Term
Monocytes
Definition
Phagocytic leukocyte that is the second to respond to an area of infection (8-12 hours)?
Term
PDGF
Definition
Factor released by endothelial cells and platelets that stimulates fibroblasts to begin synthesizing collagen?
Term
Interferons
Definition
Polypeptide secreted by virally infected cells that has protective effect on surrounding cells
Term
Complement System
Definition
Group of 20 enzyme like proteins in the blood that enhance inflammation and antimicrobial activity
Term
Opsonization
Definition
Covering of bacterial surface that permits or enhances phagocytosis by macrophages
Term
Pyrogen
Definition
Protein produced by macrophages that stimulates the hypothalamus to secrete PDE which leads to fever
Term
Humoral Immunity
Definition
Antibody mediated specific immunity
Term
Antigens
Definition
Molecules that can evoke an immune response and are usually (but not always) proteins
Term
Variable Region
Definition
Area on antibody that binds foreign materials
Term
IgM
Definition
Class of antibody that is a pentamer and is involved in the initial immune response
Term
IgG
Definition
Class of antibody that is involved with secondary immune response and is the most abundant of the antibodies
Term
IgA
Definition
Class of antibodies involved in secretions such as tears, saliva and intestinal juices
Term
Percipitation
Definition
Antibody action that causes the antigen and antibody to form a solid particle that can be phagocytosed
Term
Interleukins
Definition
Hormone like messengers between lymphocytes
Term
B Cells
Definition
Type of lymphocyte involved in humoral immunity
Term
Plasma Cells
Definition
Active antibody producing cells in blood
Term
Cytotoxic Cells
Definition
Type of lymphocyte that is directly involved in attacking viral infected cells
Term
Helper T Cells
Definition
Type of lymphocyte that is involved in the activation of both the cell mediated and humoral immunity
Term
Dendritic Cell
Definition
Type of cells that can activate B lymphocytes and cytotoxic T lymphocytes by bringing them antigen fragments
Term
Memory T Cell
Definition
Type of cell mediated cell that forms clones for future exposure to antigens
Term
Supressor T Cell
Definition
Type of lymphocytes that can limit the attack of the immune system by releasing inhibiting lymphokines
Term
MHC II
Definition
Type of self antigen found on macrophages and other APCs
Term
MHC I
Definition
Type of self antigen found on all nucleated cells
Term
MHC II
Definition
Type of MHC antigen that is recognized by CD4 receptors
Term
MHC I
Definition
Type of lymphocyte that has CD8 receptors
Term
Interleukin I
Definition
Costimulator provided by macrophages to helper T cells
Term
Interleukin II
Definition
Costimulator provided by helper T cells to cytotoxic T cells
Term
DNA Destruction
Definition
Function of lymphotoxins produced by the killer T cells
Term
Perforins
Definition
Chemical released by killer T cells that punch holes in virally infected cell
Term
Tumor Necrosis Factors
Definition
Factor produced by killer T cells that destroys cells infected by cancer
Term
Supressor T Cell
Definition
Type of T cell that slows down the immune response
Term
Natural Passive Immunity
Definition
Type of immunity that is transmitted from mother to fetus
Term
Artificial Active Immunity
Definition
Type of immunity that is developed from a vaccination
Term
Natural Active Immunity
Definition
Type of immunity developed after having a disease
Term
MIF (Migration Inhibiting Factor)
Definition
Factor released by killer T cells that attracts macrophages to the area of attack
Term
IgM
Definition
Type of antibody involved in the agglutination of red blood
Term
Reverse Transcriptase
Definition
Enzyme used by retroviruses to plant genetic material of the virus into the host’s genome
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