Question 1
What is the role of thromboxane A (TXA2) in the secretion stage of hemostasis?
◦ Stimulates the synthesis of serotonin.
◦ Promotes vasodilation.
◦ Stimulates platelet aggregation.
◦ Promotes formation of cyclooxygenase.
Question 2
Which of these is the role of nitric oxide (NO) in hemostasis?
◦ Stimulates the release of fibrinogen to maintain the platelet plug.
◦ Stimulates the release of clotting factors V and VII.
◦ Causes vasoconstriction and stimulates platelet aggregation.
◦ Controls platelet activation through in concert with prostacyclin.