Immune System Intro and Antibodies Flashcards
Cell surface receptors or inner membrane receptors that are used to recognize foreign molecular patterns
Pattern Recognition Receptors (PRRs)
____ chain has an extra long hinge region
delta
____ chains have an extra constant domain CH4
epsilon
____ is most able to activate complement because it has ____ adjacent Fc domains and only two Fc domains is required to activate complement
IgM; 5
_____ have segmented nuclei with colorless granules
Neutrophils
_____ is an antibody associated with a secretory component that makes it resistant to digestive enzymes.
IgA
_____ is an antibody that produces symptoms of allergy is important in resistance to parasites
IgE
_____ is better at activating complement than IgG and first Ig to appear in blood after exposure to an antigen
IgM
_____ is the most abundant antibody in the blood
IgG
_____ is the only antibody class made by the fetus
IgM
_____ is the only antibody that can pass through the placenta.
IgG
______ cells arrange for phagocytosis and destruction of foreign materials by release of antibodies.
B
______ enter at the periphery of the lymph node
lymphatic vessels
______ exit at the hilum of the lymph node
veins and lymphatic vessels
______ have a kidney shaped nucleus and abundant cytoplasm
Monocytes
______ have segmented nuclei with blue granules
Basophils
______ of the spleen consists of islands of cells with an arteriole surrounded by T cells, which are surrounded by B cells
White pulp
_______ are lymph node-like structures that underlie the GI mucosa
Peyer’s patches
_______ enter at the hilum of the lymph node
arterioles
_______ have segmented nuclei with red granules
Eosinophils
_______ require lysis by the MAC for clearance
Neisseria
________ associate with MBP to activate C2 and C4 and start the cascade
MBP-Associated Serine Proteases (MASPs)
10 light chains, 10μ chains, and 1 J chain
IgM
2 light and 2 gamma chains
IgG
2 light and 2 ε chains
IgE
2 light and 2δ chains
IgD
4 light chains, 4 α chains, 1 J chain, and 1 S.C. chain
IgA
Acellular fluid component of blood, including proteins
Plasma
Activated ________ leave local area and travels to nearest lymph node where it presents the antigen to lymphocytes
Dendritic Cells
Allelic differences in the sequence of immunoglobulins of different individuals
allotypes
An antigen in the form that is able to give rise to an immune response
immunogen
Anaphylactic shock occurs when _______ cells throughout the body are suddenly degranulated and release _________.
Mast; histamine
Antigen in a form or by a route that does not give rise to an immune response
toleragen
Antigenic stimulation, there is a good change that a daughter will make a slightly different antibody; selection by antigen of the best-fitting mutants allows a gradual increase of affinity
Antibody Affinity Maturation
Area in a lymph node with very crowded dividing cell areas that are evidence of an immune response
germinal center
Autoimmunity of antibodies is Type ____ Immunopathology
II
Both Fab domains connected by disulfide bonds in the hinge region (second and third constant domains of the heavy chain cleaved off)
F(ab)2
Bridge between innate and adaptive immunity
Dendritic Cells
Cells in the tissue related to basophils
Mast cells
Cells with a lobulated nucleus prominent cytoplasmic granules
Polymorphonuclear cells/granulocytes
Central lymphoid organs where lymphocytes develop
Thymus, bone marrow
Changing the relative positions of two pieces of DNA
DNA Recombination
Chemotactic cytokines that recruit white blood cells (ex. to an area of inflammation)
Chemokines
Foreign molecular structures that can be recognized by PPRs
Pathogen-Associated Molecular Patterns (PAMPs)
Half of an antibody consisting of the light chain and the half of the heavy chain containing the CDRs
Fab
Harmless version of a toxin.
Toxoid
Homologous receptors to Toll in the fruit fly that can recognize foreign molecular structures that humans don’t have
Toll-Like Receptor (TLRs)
Immediate hypersenstivity is Type _____ Immunopathology
I
Leukocytes whose nucleus has a smooth outline
Mononuclear cells
MBP/MBL functions similarly to ______ in the classical pathway
C1q
nucleated cells of the blood; white blood cells; buffy coat when centrifuged
Leukocytes
Part of the antigen that fits into the receptor
epitope
Peripheral lymphoid organs where lymphocytes trap and respond to foreign invaders
Lymph nodes (including mesenteric), spleen, Peyer’s patches,
Plasma without the clotting factors
Serum
Properdin, part of the _____ complement-activating pathway, facilitates assembly of ______, which activates ____.
alternate; C3bDbC3b; C5
Region of the variable domain that is used to specifically bind an epitope
CDR
Small peptides important in immune cell signaling
Cytokines
Stress or damage indicator molecules expressed by body cells
Damage-Associated Molecular Patterns (DAMPs)
T helper cells migrate from the _______ to _______ where they help activate B cells
paracortex; follicles
Tendency of one antibody to react with more than one antigen
Cross-reactivity
The ____ of the spleen is the body’s most important filter of particulates, such as bacteria and damaged platelets
Red pulp
The alternate pathway, activated by cell wall structures of microorganisms such as dextrans, levans, zymosan, and endotoxin, is part of ______ immunity
innate
The classical pathway, activated by complexes of antibodies bound to antigens, is part of ______ immunity.
adaptive
The lectin pathway, mediated by ________, a lectin, which binds carbohydrates, is part of ______ immunity
mannose-binding protein (MBP or MBL); innate
The number of antigenic determinants that can be bound by a single antibody
antibody valence
The second and third constant domains of the two heavy chains
Fc
The transcription factor most frequently activated in inflammation is ______.
NF-kB
The V region of a _____ chain does not have any D segments (only V and J)
light
Theory that each cell of the immune system is programmed to make only one antibody
Clonal Selection Theory
Theory that only one H chain and only one L chain (either kappa or lambda, maternal or paternal) are synthesized in any B cell
Allotypic Exclusion
Type ____ immunopathology is characterized by T Cell-mediated innocent bystander injury
IV
Type _____ immunopathology occurs when tissue damage results from trapped complexes activating complement
III
Unique structure created by the CDRs of an antibody that can serve as an antigen to another antibody
idiotype
When a large immune complex in which the antigen is a large particle or a cell precipitates from solution
Agglutination
When growth of an immune complex consisting of cross-linking antigens becomes significant enough to cause the large complex to become insoluble
Precipitation
Which complement factor(s) is/are anaphylatoxic?
C3a, C4a, and C5a
Which complement factor(s) is/are chemotactic?
C5a
Which complement factor(s) is/are lytic?
Membrane Attack Complex (MAC)- mostly C8 and C9
Which complement factor(s) is/are opsonizing?
C3