To what does the term “osteon” refer in bone? A. the bone cells (osteocytes) in lacunae. B. a small rounded projection on a bone. C. concentric cylinders of calcifi ed bone matrix. D. the membrane covering the outside of a bone.
Option C. The osteon, frequently termed the number one structural unit of cortical bone, is a cylindrical shape wherein a principal canal containing blood vessels is surrounded via way of means of 20 to 30 concentric lamellae
