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WorksheetsImmunology: inflammation FINISHED
Total questions: 106
Worksheet time: 3585secs
Inflammatory response is a ____ immune defense mechanism that is initiated by injury of infection in vascularized tissue
specific, adaptive
nonspecific, innate
Inflammatory response develops ___ after an injury.
quickly
slowly
The inflammatory response is only always protective.
True
False
Rapid response to an injurious agent that serves to deliver leukocytes and plasma proteins to the site of injury.
Actue inflammation
chronic inflammation
What is the suffix for inflammation?
-itis
-ectomy
-emesis
What are the 3 major components of acute inflammation?
altered vascular caliber
structural changes in microvasculature
emigration of leukocytes from microcirculation
Increased or restricted blood flow is which of the 3 parts of acute inflammation?
altered vascular caliber
structural changes in microvasculature
emigration of leukocytes from microvasculature
Part of acute inflammation that allows plasma proteins and leukocytes to leave the circulation.
altered vascular caliber
structural changes in the microvasculature
emigration of leukocytes from microcirculation
Emigration of leukocytes from the microcirculation, accumulation in the focus of the injury and their activation to elminate the agent is part of the major components of acute inflammation.
True
False
Select the functions of inflammation.
deliver defensive materials to the site
limit effects by confining the pathogen and its products
repair and replace tissue that is damaged
The inflammatory response consists of ____
vascular reactions only
cellular reactions only
both vascular and cellular reactions
Select the cardinal signs of inflammation.
redness
swelling
heat
pain
loss of function
"Rubor"
redness
heat
pain
swelling
"tumor"
redness
heat
pain
swelling
"calor"
redness
heat
pain
loss of function
"dolor"
heat
pain
redness
swelling
Put in order the steps of acute inflammation
inflammatory stimulus
inflammatory mediators
vascular response
leukocyte migration/phagocyte function (then increased next)
inflammatory repair
The six steps of acute inflammation take place ___
locally (at the site of damage)
systemically (body-wide)
What best summarizes step one of the inflammatory response?
tissue damage
PRRs recognize PAMPs and DAMPs
release of chemokines
PAMPs and DAMPs from the inflammatory stimulus are recognized by PRRs is part of which step of acute inflammation?
step 1
step 2
step 3
step 4
Activated macrophages release inflammatory mediators to trigger the AIR.
Step 1
Step 2
step3
step 4
What kind of cells recognize PAMPs and DAMPs?
T cells
B cells
sentinel cells
Which of the following are "sentinel cells"?
macrophage
T cell
DC
B cell
What mediates the trigger for activated macrophages to release inflammatory mediators to trigger the AIR?
IL 12
IL8
IL6
The release of inflammatory mediators by macrophages is cytokine mediated.
True
False
What cytokines increase vascular permeability?
IL 8
IL 1
IL 6
TNF
Which cytokine triggers the acute phase 2 response?
IL 1
IL 6
IL 8
Released to draw neutrophils to the site of infected or damaged area.
cytokines
chemokines
Less ordered form of cell death that leads to the release of cellular contents.
apoptosis
necrosis
When cells are stimulated by mechanical, chemical, or physical stimuli, arachidonic acid is rapidly converted into ____ and _____
TNF and IL 1
leukotrienes and prostaglandins
leukocytes and neutrophils
NSAIDS will inhibit the production of which one?
leukotrienes
prostaglandins
Released by mast cells/basophils, platelets and increases capillary permeability
serotonin
histamine
kinnins/bradykinin
Released by platelets and cause vasoconstriction.
serotonin
histamine
kinins/bradykinins
leukotrienes
Which of the following will NOT produce vascular permeability?
Serotonin
Kinins/bradykinins
prostaglandins
histamine
leukotrienes
Which of the following will vasodialate AND induce pain?
kinins/bradykinins
prostaglandins
leukotrienes
histamine
What is the vascular response to inflammation?
blood vessels dilate
increased capillary permeability
adhesion molecules expressed on endothelial cells
decreases swelling and redness
Vascular response to inflammation is triggered by
chemicals released by damaged cells
not this
Inflammatory mediator release causes vascular changes and increased fluid leakage.
fever
edema
pain
Ultrafiltrate of plasma, low protein content, result of hydrostatic or osmotic imbalance.
transudate
exudate
Result of inflammation, increased leukocytes, increased vascular permeability, high protein content
transudate
exudate
Result of inflammation
transudate
exudate
Result of hydrostatic or osmotic imbalance
transudate
exudate
High protein content
transudate
exudate
low protein content
transudate
exudate
Transudate and exudate leads to edema.
True
False
In edema, Leakage is restricted to venules of 20-60 mm in diameter.
True
False
Leakage for edema is caused by endothelial gaps.
True
False
Edema is usually and ___ and transient response.
slow
immediate
Gaps in venules occur due to shortening and contraction of individual endothelial cells.
True
False
Loss of protein from plasma will lead to REDUCED osmotic pressure in the ____
vasculature
interstitium
Loss of protein in plasma leads to INCREASED osmotic pressure in the ____
vasculature
interstitium
A critical function of the vascular inflammatory response is to
deliver leukocytes to site of injury
not this
First inflammatory cells recruited to the site of inflammation
macrophages
T cells
neutrophils
B cells
Extravasation of leukocytes is a coordinated even of ____
rolling adhesion
tight binding
diapedesis
migration
During leukocyte migration, blood flow ____
slows
speeds up
MAcrophages release ____ to facilitate movement through the basement membrane.
PAMPs
MMPs
DAMPs
In order for leukocytes to leave the vessel lumen, endothelial cells need to be activated which upregulates ______.
adhesion molecules
not this
Adhesion molecules on endothelial cells interact with complementary adhesion molecules on leukocytes.
True
False
Upregulation of adhesion molecules on endothelial cells is induced by ___, ___, and ____.
TNF-a
IL 1
histamine
IL 8
TNF-a, IL-1, and histamine to upregulate adhesion molecules is produced by ____
neutrophils
macrophages
What are the 4 families of adhesion molecules involved in leukocyte migration?
selectins
mucin-like glycoproteins
immunoglobulin-like molecules
integrins
What are the weaker affinity interactions that are needed for rolling adhesion?
selectins
immunoglobulin-like molecules
integrins
mucin-like glycoproteins
Higher affinity interactions that are needed for tight binding?
selectin
immunoglobulin-like molecules
integrins
mucin-like glycoproteins
What is the stronger high affinity interaction?
Immunoglobulin like molecules
integrins
Which is the weakest weaker affinity interactions?
selectin
mucin-like glycoproteins
sialyated lewis X and Heparin sulfate
selectins
mucin-like glycoproteins
immunoglobulin
integrins
ICAM-intercellular adhesion molecule and VCAM-vascular adhesion molecule
selectin
mucin-like glycoproteins
immunoglobulin like molecules
integrins
LFA-1 and VLA-4
selectin
mucin-like glycoproteins
immunoglobulin like molecules
integrins
Put the steps of leukocyte migration in order
rolling adhesion
tight binding
diapedesis
migration
During rolling adhesion, ____ and ____ mediate the interact between leukocytes and the endothelium.
glycoproteins
selectins
immunoglobulin-like molecules
integrins
Sialyated-Lewis X binds with
E/P selectins
Heparin sulfate
L-selectin
E/P selectin
Heparin sulfate
Brings the leukocyte closer to the endothelial lining
margination
not this
Bringing the leukocyte closer to the endothelial lining is which part of leukocyte migration?
rolling adhesion
tight binding
diapedesis
migration
Endothelial cells are activated by cytokines and inflammatory mediators during which part of leukocyte migration?
rolling adhesion
tight binding
diapedesis
migration
What gets secreted by activated endothelial cells during inflammation?
cytokines
chemokines
Chemokines bind to receptors on leukocytes and increase integrin expression during which part of leukocyte migration?
rolling adhesion
tight binding
diapedesis
migration
cell adhesion molecules expressed on leukocytes that bind to ICAM or VCAM on endothelial cells
selectins
integrins
In tight adhesion, LFA-1 binds to ___
ICAM
VCAM
In tight adhesions, VLA-4 binds to ___
ICAM
VCAM
Which cytokines upregulate ICAM on endothelial cells?
IL-1
TNF-a
IL-6
IL-8
Strong adhesion that arrests the leukocyte.
rolling adhesion
tight binding
diapedesis
migration
when the leukocyte migrates through endothelial junctions
margiination
diapedesis
Which cytokine serves as a chemoattractant for neutrophils?
IL-1
IL-6
IL-8
TNF-a
break up basement membrane collagen so the neutrophils can move through the tissue
PAMPs
DAMPs
MMPs
ICAM
What releases MMPs?
neutrophils
macrophages
endothelial cells
Which is an EXOGENOUS stimuli that can act as a chemoattractant for leuocytes?
bacterial product
anaphylatoxins
leukotrienes
chemokines
Which is an ENDOGENOUS stimulil that can act as a chemoattractant for leukotrienes?
bacterial products
anaphylatoxins
leukotrienes
chemokines
C5a, C3a, and C4a are all ____
anaphylatoxins
leukotrienes
chemokines
IL8 is a ___
anaphylatoxin
leukotriene
chemokine
differentiate into macrophages in the tissue
monocyte
neutrophil
mast cell
release cytokines and chemokines and increase their phagocytic activity
monocytes
macrophages
neutrophils
mast cells
Release granules that contain antimicrobial oxygen radicals
macrophages
mast cells
Release histamines, leukotrienes, and cytokines
macrophages
neutrophils
mast cells
Eosinophils
Release granules that act as cytotoxic proteins
neutrophils
eosinophils
Which leukocyte shows up to the injured tissue first?
monocytes
lymphocytes
neutrophils
Kills pathogens through oxygen radicals
neutorphils
eosinophils
Forms pus upon death
macrophages
neutrophils
eosinophils
What facilitates attachment of a pathogen to a macrophage?
pathogen coating
not this
Macrophages can only phagocytize dead neutrophils and NOT the pathogen itself.
True
False
complement proteins and antibodies that coat a pathogen and help macrophages phagcytize them.
opsonins
integrins
Select all of the ways acute inflammation is terminated.
eradication of the pathogen or injury
neutrophils dying off
short lived mediators
anti-inflammatory cytokines
which of the following are ANTI-INFLAMMATORY cytokines?
IL-1
IL-10
TNF-a
TGF-B
IL-6
Which of the following are PRO-INFLAMMATORY cytokines?
IL-1
IL-10
TNF-a
TGF-B
IL-6
During acute inflammation resolution, macrophages release growth factors that repair the collagen that was degraded by MMPs.
True
False
What is the term when connective tissue replaces damaged tissue?
necrosis
fibrosis
