Exam questions-abbot Flashcards
List 2 functions of the spleen
hematopoietic (creates new blood cells)
Red blood cell reservoir
Name one tissue specific macrophage
microglia-brain
Klumpfer- liver
Name 2 effects of activation of macrophages by PAMPs
antimicrobial
antigen presentation
Antibody produced during a secondary or anamnestic response has higher affinity to the antigenic epitopes that the antibody during primary immune response. What mechanism results in this increased specificity
somatic hypermutation
List two of the body’s reactions to injury resulting in inflammation
Increased blood flow
accumulation of lymphocytes
List 3 mechanisms of generating diversity in B cell receptors. Does this also occur in T cells
Mutations/deletions- Yes
Somatic hypermutation- No
Genetic diversity- Yes
Once a B cell class switches to IgE it can no longer produce IgG, but it can still switch to IgA, why
Loss of genes
Positive selection of T cells in the thymus deletes certain T cells. Why
Can’t recognize self MHC
Negative is because they act with self
On what type of cells are MHC class 2 present
Antigen presenting cells
Where is the antigen derived that is presented by MHC class 2
exogenous
What type of cell does MHC class 2 present antigen to
CD4
Polymorphism in regard to MHC molecules
Co-dominant
Able to produce many responses
Polygeny in regards to MHC 2 molecules
multiple genes
2 separate signals that activate naive T cells from the same APC. What molecules are involved in the 1st and 2nd signal
MHC-CD3
B7-CD28
What happens to a T cell if only the 1st signal is received
Tolerence
What is the major target in a graft that is recognized as foreign by the immune system of the recipient
MHC
What causes increased immunogenicity
Large size
Intermediate dose
Complex composition
List two secondary lymphoid organs other than lymph nodes and spleen
Peyer’s patches
MALT
What type of injection will give the best immunogenicity
SQ
What is the general effector of immediate hypersensitivity
IgE
What is a condition of immediate hypersensitivity
allergies
What is the general effector of cytotoxic type hypersensitivity
ADCC
What is a condition of cytotoxic type hypersensitivity
Drug reactions
What is a general effector of immune complex type hypersensitivity
Immune complex
What is a condition of immune complex type hypersensitivity
Serum sickness
What is a general effector of delayed type hypersensitivity
T-lymph
what is a condition of delayed type hypersensitivitiy
poison ivy
First line of defense against virus that infects endothelial cells
MHC 1 restricted production of Th1 cytokines
Immunity against a small extracellular protozoa
antibody, opsonizing
general protection against heminthes
Cytokine mediated NK cells
Toxin mediated disase such as Clostridium botulinum
Antibody neutralizing
Long term memory response against viral infection of epithelial cells
MHC 1 restricted productionof cytotoxic Tlmphhocytes
T/F: Adaptive immune response is always genearate after an innate immune response
false
T/F: Adaptive immunity always requires priming
True
For a whole organism that is inactivated vaccine, do you need adjuvant, does it replicate in host, and is it exogenous or endogenous
Needs adjuvant, does not replicate in host, exogenus
For a whole organism that is live, do you need adjuvant, does it replicate in host, and is it exogenous or endogenous
Doesn’t need adjuvant, replicates in host, endogenous
Does part of the part of the whole antigen that is inactivated in a vaccine need adjuvant, replicate in host, and is it exogenous or endogenous
needs adjuvant, does not replicate in host, exogenous
Does a whole modified vaccine need adjuvant, replicate in host, and is it exogenous, endogenous, or both
does not need adjuvant, replicates in host, and is both
One difference between primary and secondary lymphoid organs
Primary- lymphocyte maturation
Secondary- proliferation
What is an example of a primary lymph organ
Thymus
What is an example of secondary lymph organ
lymph node
what are 2 functions of macrophages
Phagocytosis
antigen presentation
Is recognition of PAMPs in beginning of immune response adaptive or innate
Innate
macrophages, neutrophils, compliment, and NK cells are primarily innate or adaptive
innate
Memory is innate or adaptive
adaptive
APC for generation of immune response adaptive or innate
adaptive
is phagocytosis of exogenous antigen MHC 1 or 2
2
The fusion of lysosome and the phagosome for processing is MHC1 or 2
2
APCs are used in MHC 1 or 2
2
Does MHC 1 or 2 require the proteosome for processing of endogenous antigen
1
what is used in toxin mediated disease
antibody neutralizing
what is used in intestinal infection
antibody neutralizing
what is used in innate immunity protection of west nile virus
natural killer cells
what is used in short term adaptive protection against WNV
antibody opsonizing
what is used in long term adaptive protection against WNV
CD8T cells
what is used in immunity against an intracellualr bacteria
phagosomal lysosomal fusion
what are 2 problems that can occur with any vaccine
hypersensitivity
impure vaccine
2 goals of vaccine that are independent of eradication
increase resistance of herd
prevent spreading
What are unique features of the mucosal immune system
peyer’s patches, M cells, secretory IgA
Kennel cough vaccine is administered interanasal, what antibody would predominate
IgA
unique feature of secretory IgA
synthesis in mucosal tissues only
what is self tolerance
lack of response to a self antigen
how is b and t cell self tolerance established
colonal deletion/ colonal anergy
what is colonal deletion
elimination of immature T and B cell clones with self reactive antigen receptors
what is autoimmunity
loss of self tolerance