Blood And Immune Flashcards
1
Q
Zymogen
A
Proteins that are activated by being cleaved
2
Q
Intrinsic + extrinsic factor
A
Factor x —-> protothrombin —> thrombin
3
Q
Plasminogen—-> plasmin
A
Destroys Fibrin clot
4
Q
TPA
A
Tissue plasminogen activator.
Activates plasminogen —-> plasmin to break firbin clots
5
Q
Intrinsic clotting factors
A
V,VII
6
Q
Extrinsic clotting factors
A
VIII, IX, XI, XII
7
Q
Clinal selection
A
An immature B cell is selected due to antigen affinity and rapidly multiplied
8
Q
Somatic hypermutation
A
The B cell with low affinity is rapidly multiplied and mutated to give a variability of affinities and the cells with the highest affinity are selected and further hypermutated
