What are platelets? write their function?
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Platelets are the component of the blood which help in blood clotting
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- platelets are also called thrombocytes.
- They are a kind of formed elements.
- Blood platelets are non nucleated ,round or oval biconvex discs.
- Their number range from 2,50,000 to 5,00,000 per cubic mm.
- Platelets are fragments of mega karyocytes.
- Their average life span is 5 to 9 days.
- They secrete thromboplastin which is important for blood clotting.
- They clump at the damage part of the blood vessel and form a plug preventing blood nerve.
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