Hemostasis Flashcards
1
Q
Platelet aggregation
A
Platelets recruited to site of injury
2
Q
Coagulation
A
Clot forming
3
Q
Normal platelet numbers
A
150,000-400,000 cells per mm3
4
Q
Thrombocytopenia
A
Low platelet count disorder
5
Q
What is the role of tissue plasminogen activator (t-Pa)
A
Catalyzes formation of plasmin, dissolves a clot
6
Q
What mediator is known to stimulate the conversion of fibrinogen to fibrin
A
Thrombin
7
Q
What mediator is known as a powerful stimulant of platelet (thrombocyte) aggregation
A
Thromboxane A2 (TXA2)
8
Q
Endothelial cells express which anticoagulant on their cell surface
A
Heparin
