hemostasis
Terms
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- What are the three categories of hemostasis
-
Primary
Secondary
Tertiary - What are the functional components of hemostasis
-
Vascular
Platelets for minor breaks
Coagulation for larger breeches in vessel integrity - The vascular components reduce blood flow by what two methods
-
Local vasconstriction and
Compression of injured blood vessels by blood extravasasted into surrounding tissues - What are the platelet components of hemostasis
- hemostatic plugs and platelets release factors to augment vascoconstriction and initiate wall repair
- what factor initiates the clotting cascade
- PF3
- What is coagulation
- A sequential cascade of enzynmatic reactionthat forms a fibrin mesh to stabilize the platelet plug
- Where are the coagulation factors created
- in the liver
-
what is the coagulation cascade
` - Intrinsic, extrinsic and the common pathway
- when is the intrinsic system activated
-
collagen is exposed
PF3
Endotoxin
factors xii, xi, ix and viii - the extrinsic system is initiated by
- thromboplastin
- what factors are released by the extrinsic system and where
- factor III is released by injured tissues and is extrinsic to blood