Now, eventually, when these cells completely surround themselves and enclose themselves with the matrix, they basically become, they differentiate into a second type of cell known as an osteocide. Now, what exactly is an osteocide? Well, basically, the osteocide is the most common type of cells found in the bone. And the osteocide is responsible for providing the bone with nutrients that the bone actually needs to survive. So the osteocide is connected to the blood vessels that carry the different types of nutrients, as we'll see in just a moment. So osteocides are the most common types of cells found inside bone and they are responsible for obtaining nutrients from the blood as well as dumping any type of waste products into our blood so that those waste products are recycled.