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41 Cards in this Set

  • Front
  • Back
COX
Cyclooxygenase

Arachidionic Acid ----(COX)---> prostoglandins
5-Lipoxygenase
Arachidionic Acid ----(5-LO)--->Leukotrienes
Activated Hageman Factors
XII a (Coagulation Pathway)

-->intrinsic coagulation
-->prekalikrien activation
--> plasminogen activation (degrade fibrin clot)
Thrombin Activity
-fibrinogen cleavage

-plasminogen activation (will in turn activate C5)

-complement activation (C5)

-platelet activation

-endothelial cell activation via protease rec.

-protease activated receptors
Platelet Activating Factor
-vasoactive

-chemotaxis

-platelet activation

-pain

-endothelial cell activation

-leukocyte activation

-cell adhesion molecule
Complement factor interacting with B-Cell CD21
CD3d

potent opsonin
Juxtacrine
cells signal each other/ activate via touching
Kallikrien-Kinin Pathway
XIIa--->Prekallirien

PreKalikrien---> Kalikrien

Kalikrien ---> Bradykinin / Kinin
Bradykinin Activities
-vasodialation

-vascular permeability

-pain

-endothelial cell activation
C2-Kinin
vasoactive
C3a, C5a
anaphylotoxins

vasoactive, mast cell/platelet dependent
C3b, C3bi
opsonins

facilitate leukocyte phagocytosis
C3d
antigen-induced B-Cell activation
C5a
chemotactic factor

also an anaphylotoxin
C5b-9
membrane attack complex
(cytolysis)
Kalikrien Activity
intrinsic coagulation activation

kininogen cleavage

complement activation
Hypergalesia
"pain"

exacerbated by PGA E2
Pyrexia
heat / fever
Rubor
redness
C5a, C5b67
leukotactic

C5a = anaphylotactic
Plasmin Activity
fibrin clot lysis

C3 complement activation
LTB4
LTB4 Chemotactic
Leukocyte activation
5-HETE
5-KETE
Chemotactic
LTC4
LTD4
LTE4
increase Vascular permeability
increase Bronchoconstriction
PGI2
PGI2 Vasodilation, ↑cAMP
Platelet aggregation
TXA2
TXA2 Vasoconstriction
Platelet aggregation
PGE2
PGE2 Vasodilation, Hyperalgesia
Fever, Potentiates edema
PGD2
PGF2a
Vasodilation
Potentiates edema
NSAID MOA
blocks COX

blocks formation of prostaglandins

shifts over to leukotrienes

DO NOT GIVE TO ASTHAMATICS
Zyflo MOA
blocks 5-lipooxygenase

blocks formation of leukotrienes

good for asthamtics
Corticosteroids MOA
blocks activity of PLA2

cannot form ARACHIDIONIC ACID

cannot make PGAs and leukotrienes

decrease inflammation
Platelet Activating Factor
(activity)
Vasoactive (erythema, edema)

Chemotaxis

Platelet activation

Leukocyte stimulation

Endothelial cell activation

Cell adhesion molecule

Pain
NO made by
-endothelial cells
(stimulated by bradykinin)

-NO will increase cGMP
IKB
inhibitor of kappa-beta

inhibits TF NF-KB

corticosteroids will increase IKB
CAMS
endothelial cells bind to adhesins on WBC
Where WBC margination, rolling, stopping, and diapedesis occurs:
ARTERIOLES: rolling and adherance

CAPILLARIES: stopping

VENULES: diapedesis
PECAM-1
modulates endothelial migration of leukocytes
Juxtacrine
cells signal each other via touching surfaces
Prostoglandin E2
sensitizes specialized nerve endings to the effects of bradykinin
Bradykinin
-vasodilation
-increased vascular permability
-endothelial cell stimulation
-pain
Kallikrien
-intrinsic coagulation activation
-kinogen cleavage
-complement activation