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73 Cards in this Set
- Front
- Back
Immunity that is developed after exposure to foreign substance
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Adaptive Immunity
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Adaptive (Acquired) Immunity:
Relies on ___ & __ lymphocytes |
T & B
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Key features our its:
1. 2. |
Specificity
memory |
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Adaptive (Acquired) Immunity:
This ___ develops during fetal growth |
ability
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What are ANTIGENS?
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Flagella
Toxins Pili Complex molecules |
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Known as adaptive specific immunity:
_____b/c one has to develop these mechanisms |
adaptive
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Known as adaptive specific immunity:
_____b/c they are directed towards a particular antigen |
Specific
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_____ leads to immunological memory
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Immunizing event (an infection)
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Adaptive Immunity:
Relies on the what cells? |
T Cells and B cells w/ help from T-helper cell
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Adaptive Immunity:
What are produced towards a specific antigen? |
Antibodies
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Adaptive Immunity:
____can remember who they have seen & rapidly respond upon the 2nd encounter |
B cells
T cells also have memory |
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Lymphocytes react ____ w/ virus.
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specifically
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Ex. Chickenpox virus would react specifically with virus then...____ will react against the chickenpox.
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Antibodies
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first contact with antigen creates a unique programmed____ cell.
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Memory cell.
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1st contact w/ antigen=memory cell
makes what kind of ___ ___. |
Immune response (small)
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2nd contact w/ antigen= memory cell make what kind of ___ ___.
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Rapid, amlified
immue response |
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Specific Immunity:
1. Lymphocyte ___ &___. 2. Antigen___. 3. Challenge & subsequent ____ of __&__. 4. Activated __ cells called___ release antibodies. 5._____responses kick in. |
1.development & maturation
2. Presentation 3. activation, Ts, Bs 4.B, plasma cells 5. T-lymphocyte |
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___: -plasma cells are secrete antibodies that takes place in the bloodstream
-involves the production of antibodies *B cells |
Humoral Immunity
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__:-the T cells are activated to give a response of the
T-helper cells, Suppressor T cells, Cyotoxic T cells Delayed allergy |
Cell-Mediated Immunity
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- “antibody generators”
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Antigens
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A substance that provokes an immune response in lymphocytes
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antigen
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____processing/presentation
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Antigen
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Most antigens are ___ &___ or ___
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Complex
& large proteins or polysaccharides |
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___antigenic determinant,
antibodies recognize & interact with specific regions on antigens (where the Ab. hook up w/) |
Epitope
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Can a have more than one antigenic property?
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Yes
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How does conjugation partially explain allergies?
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Ex. Penicillin combines with the host
(small)Hapten! (penicillin) + (large) Carrier molecule (provoked immunity) =Hapten-carrier conjugate (allergic reaction/irritation) |
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Another name for antibodies?
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Immunoglobulins
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The structure of Immunoglobulins:
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-2 antigenbinding sites
-4 polypeptide protein chains: -2 light chains -2 heavy chains -Y shaped |
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Ag binding sites have unique ___ shape that will accommodate __antigen type
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3d,
1 |
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__different classes that serve a variety of roles
Ex: Long term memory secreted onto mucus membranes. |
5 M, A, D, E
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Antigen-binding site binds to ___ on an antigen.
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epitope.
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The Stucture of the IgG.
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Monomer
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% of Total Serum Antibody of IgG.
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80%
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IgG: Located?
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Blood
Lymph intestine |
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IgG: Molecular Weight?
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150,000
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IgG: Half-lif in serum?
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23 days
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IgG: Complement Fixation?
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YES
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IgG: Placental Transfer?
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YES
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IgG: Functions are?
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-enhance phagocytosis
-neutralize toxins & viruses -protects fetus & newborn |
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____ is central to IS functioning.
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self Vs. non-self
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Every cell’s membrane has protein receptors that function as ___ ___.
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self markers.
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___control the ability to distinguish self Vs. non-self
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MHC genes
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People are born with a tremendous diversity of ___ ____.
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lymphocyte types
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diversity of lymphocyte types:
Essentially “____” into the genetic structure |
preprogrammed
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the “__” part of the antibodies found on lymphocytes
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V
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preprogramed cells are called ____
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clones
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___ ___their development does not require the presence of an antigen.
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Lymphocyte clones
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Any clones that tackle a particular self marker is destroyed
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clonal deletion
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Lymphocyte development:
By late fetal or neonatal time, B-cells are “educated” and armed with a specific ___ ___.IgD usually Same goes for T cells |
antigen receptor
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Wait for antigen in ____/___.
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circulation or in organ
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Both T & B cells originate from ____, located in__ __/ in ___ __/
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Stem cells,
bone marrow/ fetal liver |
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RBCs, macrophages, neutrophils and other WBCs originate in the same ___ cell.
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stem
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A matured T cell came from ___.
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Thymus
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A matured B cell came from___.
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adult red bone marrow
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Most immature T cells are eliminated in the ___.
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Thymus
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Both T & B cells migrate to the ___ tissue.
ex. |
lymphoid
spleen, *LYMPH NODES |
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-Help me APC & T helper
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B-cell Activation: T-dependent antigen
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usually a dentritic cell, will engulf the foreign material
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antigen presenting cell(APC),
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B-cell Activation:
antigen presenting cell(APC) 2.Will then “present” the antigen to a ___ with a complimentary antigen receptor. ____is released to activate TH |
T-cell helper
cytokinin (interleukin 1) |
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The T helper sends signals ____that will in turn activate a B-cell & other TH
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(interleukin-2)
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Activation of B cells to produce ___.
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antibodies
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B-cell activation:
____A particular antigen binds to a specific b cell clone @ its receptor site. This b cell then multiplies to make an army of clones that can respond to that Ag. |
T-independent
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B-cell activation
is actually an antibody-like molecule |
B-cell receptor
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Clone army consists of ___&__.
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plasma cells and memory b cells
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The cell divisions produce
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Plasma cells and Memory cells
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Once B cells process the antigen, interact with TH, they multiple when what happens?
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once activated
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What’s the outcome of activation?
Product of plasma cells are |
Antibodies = immunoglobulins (Ig)
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Ab/Ag Interactions:
(Gr. “to prepare food”) - antibodies cover the surface of microbe to ease their detection by Phagocytes |
Opsonization
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Ab/Ag Interactions:
clump up the microbe. (easier to kill) |
Agglutination
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Ab/Ag Interactions:
cover important receptors of microbe. *no adhesion or adherence |
Neutralize
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Ab/Ag Interactions:
binds with & deactivates certain bacterial toxins |
Antitoxin
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A known Ab can be used to I.d. an
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unknown pathogen
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Monoclonal ab production:
Created a ____ which is a cell that was created by a fusion. |
hybridoma
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