Platelets (thrombocytes): These cell components are fashioned from parts of cells present in the bone marrow identified as megakaryocytes. Normally, Greek thinkers believed that blood was made from food. Plato and Aristotle are two vital sources of proof for this watch, nonetheless it dates back to Homer's Iliad.[forty three] https://www.youtube.com/watch?v=buIHtQY7fCU