Platelets, also called thrombocytes (thromb- + -cyte, blood clot cell), are a component of blood whose function (along with the coagulation factors) is to stop bleeding by clumping and clotting blood vessel injuries.
Milk of the poppy is essentially the Westeros version of morphine. Maesters make it from crushed poppy flowers, and morphine and other opiate-based drugs are made from poppy plants. Indeed, the books' descriptions strongly suggest that the poppy is intended to be the real-world opium poppy (Papaver somniferum).
Real milk is milk that comes from pastured cows, that contains all the fat and that has not been processed in any wayâit is raw and unhomogenized. For a brochure summarizing the safety and health benefits of raw milk, see our Campaign for Real Milk Brochure. For an extensive and fully referenced presentation on the safety, health benefits and economic benefits of real raw milk, see our Campaign for Real Milk PowerPoint Presentation.