Solved UPSC CDS/OTA Question
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Q · Circulatory Systemmedium · 45s
What is the primary function of platelets?
TopicCirculatory System
Question Typemultiple choice
Difficultymedium
Marking+1 / −0.33
Test Duration30 min
Step-by-Step Solution
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Platelets (thrombocytes) aggregate at vascular injury sites, adhere via von Willebrand factor, and release granule contents to form a platelet plug. They also provide a phospholipid surface for clotting factor complexes, central to hemostasis.
Final Answer: Option B - Clot formation