And basically what the platelets have is nothing but cytoplasm. They don't actually have any nucleus. So when pieces of megacaria sides break off, they form structures called platelets or thrombicide. Now, what exactly is the function of our platelet? Well, as the platelets actually move along our blood vessel, if some type of cut develops inside our blood vessel, these platelets essentially bind to that cut and they begin to aggregate. And in a matter of five minutes they essentially form a temporary patch.