The average number membership of an American mosque was 1,248 in 2011, which counts Muslims who at least pray for Eid-al-Fitr, one of two major holidays, at the mosque. That's down from 1,625 in 2000 and is likely because of a growth in the number of mosques.
Platelet Function The role of blood platelets is to clog broken blood vessels to prevent the loss of blood. Under normal conditions, platelets move through blood vessels in an unactivated state.
1 The principal function of platelets is to prevent bleeding.  Red blood cells are the most numerous blood cell, about 5,000,000 per microliter. Red blood cells make up about 40% of our total blood volume, a measure called the hematocrit.