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73 Cards in this Set

  • Front
  • Back
Immunity that is developed after exposure to foreign substance
Adaptive Immunity
Adaptive (Acquired) Immunity:

Relies on ___ & __ lymphocytes
T & B
Key features our its:
1.
2.
Specificity
memory
Adaptive (Acquired) Immunity:

This ___ develops during fetal growth
ability
What are ANTIGENS?
Flagella
Toxins
Pili
Complex molecules
Known as adaptive specific immunity:

_____b/c one has to develop these mechanisms
adaptive
Known as adaptive specific immunity:

_____b/c they are directed towards a particular antigen
Specific
_____ leads to immunological memory
Immunizing event (an infection)
Adaptive Immunity:

Relies on the what cells?
T Cells and B cells w/ help from T-helper cell
Adaptive Immunity:

What are produced towards a specific antigen?
Antibodies
Adaptive Immunity:

____can remember who they have seen & rapidly respond upon the 2nd encounter
B cells
T cells also have memory
Lymphocytes react ____ w/ virus.
specifically
Ex. Chickenpox virus would react specifically with virus then...____ will react against the chickenpox.
Antibodies
first contact with antigen creates a unique programmed____ cell.
Memory cell.
1st contact w/ antigen=memory cell
makes what kind of ___ ___.
Immune response (small)
2nd contact w/ antigen= memory cell make what kind of ___ ___.
Rapid, amlified
immue response
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
___: -plasma cells are secrete antibodies that takes place in the bloodstream
-involves the production of antibodies
*B cells
Humoral Immunity
__:-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
- “antibody generators”
Antigens
A substance that provokes an immune response in lymphocytes
antigen
____processing/presentation
Antigen
Most antigens are ___ &___ or ___
Complex
& large proteins
or polysaccharides
___antigenic determinant,
antibodies recognize & interact with specific regions on antigens

(where the Ab. hook up w/)
Epitope
Can a have more than one antigenic property?
Yes
How does conjugation partially explain allergies?
Ex. Penicillin combines with the host

(small)Hapten! (penicillin)
+
(large) Carrier molecule
(provoked immunity)

=Hapten-carrier conjugate
(allergic reaction/irritation)
Another name for antibodies?
Immunoglobulins
The structure of Immunoglobulins:
-2 antigenbinding sites
-4 polypeptide protein chains:
-2 light chains
-2 heavy chains
-Y shaped
Ag binding sites have unique ___ shape that will accommodate __antigen type
3d,
1
__different classes that serve a variety of roles
Ex:
Long term memory
secreted onto mucus membranes.
5 M, A, D, E
Antigen-binding site binds to ___ on an antigen.
epitope.
The Stucture of the IgG.
Monomer
% of Total Serum Antibody of IgG.
80%
IgG: Located?
Blood
Lymph
intestine
IgG: Molecular Weight?
150,000
IgG: Half-lif in serum?
23 days
IgG: Complement Fixation?
YES
IgG: Placental Transfer?
YES
IgG: Functions are?
-enhance phagocytosis
-neutralize toxins & viruses
-protects fetus & newborn
____ is central to IS functioning.
self Vs. non-self
Every cell’s membrane has protein receptors that function as ___ ___.
self markers.
___control the ability to distinguish self Vs. non-self
MHC genes
People are born with a tremendous diversity of ___ ____.
lymphocyte types
diversity of lymphocyte types:

Essentially “____” into the genetic structure
preprogrammed
the “__” part of the antibodies found on lymphocytes
V
preprogramed cells are called ____
clones
___ ___their development does not require the presence of an antigen.
Lymphocyte clones
Any clones that tackle a particular self marker is destroyed
clonal deletion
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
Wait for antigen in ____/___.
circulation or in organ
Both T & B cells originate from ____, located in__ __/ in ___ __/
Stem cells,

bone marrow/ fetal liver
RBCs, macrophages, neutrophils and other WBCs originate in the same ___ cell.
stem
A matured T cell came from ___.
Thymus
A matured B cell came from___.
adult red bone marrow
Most immature T cells are eliminated in the ___.
Thymus
Both T & B cells migrate to the ___ tissue.
ex.
lymphoid

spleen,
*LYMPH NODES
-Help me APC & T helper
B-cell Activation: T-dependent antigen
usually a dentritic cell, will engulf the foreign material
antigen presenting cell(APC),
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)
The T helper sends signals ____that will in turn activate a B-cell & other TH
(interleukin-2)
Activation of B cells to produce ___.
antibodies
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
B-cell activation

is actually an antibody-like molecule
B-cell receptor
Clone army consists of ___&__.
plasma cells and memory b cells
The cell divisions produce
Plasma cells and Memory cells
Once B cells process the antigen, interact with TH, they multiple when what happens?
once activated
What’s the outcome of activation?

Product of plasma cells are
Antibodies = immunoglobulins (Ig)
Ab/Ag Interactions:

(Gr. “to prepare food”) - antibodies cover the surface of microbe to ease their detection by Phagocytes
Opsonization
Ab/Ag Interactions:

clump up the microbe. (easier to kill)
Agglutination
Ab/Ag Interactions:

cover important receptors of microbe.
*no adhesion or adherence
Neutralize
Ab/Ag Interactions:

binds with & deactivates certain bacterial toxins
Antitoxin
A known Ab can be used to I.d. an
unknown pathogen
Monoclonal ab production:

Created a ____ which is a cell that was created by a fusion.
hybridoma