coag Flashcards
FIbrin is also known as what factor?
II
Thrombin is also known as what factor?
I
What Factors are involved in the Intrinsic pathway in order?
XII XI IX X (active form of each activating the next)
What is the ultimate goal of coag?
Fibrin
What is the inactive form of factor I?
Fibrinogen
What do both intrinsic and extrinsic pathways converge onto?
Activated X
What factors are involved in the extrinsic pathway?
III (tissue factor)
VII
X
Which pathway gets activated by the original insult?
Extrinsic
Which pathway gets most of the coagulation done?
Intrinsic
How does the pathway work?
Tissue factor activates VII which activates X
X activates a little bit of thrombin
Thrombin gets the intrinsic “work horse” going
What factors does thrombin activate?
5,7,8,11,13
What does factor XIII do?
Cross-links fibrin!
If you remove one of the factors, the person can still clot pretty well, which one is it?
XII
Where does factor VIII come in?
Helps Factor IX
Where does factor V come in?
Helps factor X