What is the role of thromboxane A (TXA₂) in the secretion stage of hemostasis?
A)Stimulates the synthesis of serotonin.
B)Promotes vasodilation.
C)Stimulates platelet aggregation.
D)Promotes formation of cyclooxygenase.

Question

Quizplus · Accepted Answer

Platelet aggregation is primarily stimulated by TXA₂ and adenosine diphosphate (ADP), which induce functional fibrinogen receptors on the platelet. Thromboxane A is not involved with serotonin synthesis, vasodilation, or production of cyclooxygenase.

What Is the Role of Thromboxane a (TXA₂) in the Secretion