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The function of blood platelets is to prevent bleeding.

Normal blood platelets count has range from 1.5 lakhs to 4.5 lakhs.
The normal platelet count is 150,000-350,000 per microliter ofblood, but since platelets are so small, they make up just a tiny fraction of the blood volume. The principal function of platelets is to prevent bleeding. Red blood cells are the most numerous bloodcell, about 5,000,000 per microliter