Thromboxane is produced mainly by _______________?
Correct answer: B. Platelets
- A. Liver
- B. Platelets
- C. Damaged tissue
- D. Vascular endothelium
Explanation
Activated platelets produce thromboxane A₂, which promotes platelet aggregation and vasoconstriction during haemostasis. Vascular endothelium mainly produces prostacyclin, which opposes these effects.
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