What are Platelets in Biology?
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Platelets are tiny blood cells that help your body form clots to stop bleeding. If one of your blood vessels gets damaged, it sends out signals to the platelets. ... They also send out chemical signals to attract more platelets. The additional platelets pile onto the clot in a process called aggregation.
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Platelets are pieces of very large cells in the bone marrow called megakaryocytes. They help form blood clots to slow or stop bleeding and to help wounds heal. Having too many or too few platelets or having platelets that don't work as they should can cause problems.
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