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A member asked:
What are platelets?
3 doctors weighed in across 2 answers
Control bleeding: Platelets monitor blood vessels and if there is injury, stick to the site of injury (adhesion) and then release chemicals that attract other platelets (release reaction). Other platelets respond by being drawn to the area of injury and attaching to the growing platelet plug (aggregation). Activated platelets also provide a surface that supports blood clotting (coagulation).
Answered 8/29/2013
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