Pio del Rio-Hortega Directory References Discover Titanosaurs: 8 of the World's Biggest Dinosaurs How Deadly Is Quicksand? Were the Nazis Socialists? 6 Questions About the History of Money and Banking Answered 9 Mind-Altering Plants The Fastest Animals on Earth 6 Important Mughal Emperors Contents Pio del Rio-Hortega Ask the Chatbot a Question Ask the Chatbot a Question Learn about this topic in these articles:microglia In microglia…and 1921 by Spanish neuroanatomist Pio del Rio-Hortega, who was a student of Spanish histologist Santiago Ramón y Cajal, best known for his work in establishing neurons as the basic units of nervous tissue.Read More