So we have these blue extensions, we have our canals known as canaliculi, and we also have this center region at the center of our osteon known as a hoversion canal. Now, this hoversion canal is basically a central canal that consists of lymph vessels, it consists of blood vessels and it also consists of neurons, so, nerve cells. So, in the center of the osteon, the building block of the bone, we have a canal known as our Herbertian Canal or the central canal. And this canal contains the blood vessels, our lymph vessels that basically carry away different types of waste products. The blood vessels bring different types of nutrients and we also have neurons that basically innervate our bone. Now, bone contain many of these individual osteons.