Question

What effect happens when osteoblasts in the inner layer of the periosteum lay down bony cartilage in the diaphysis?

A. bone becomes brittle

B. bone becomes hollow

(C. Is Wrong)

D. bone becomes thicker

Answer 1

D. bone becomes thicker

Answer 2

D) Osteoblasts lay down bone matrix, the diaphysis of the bone is the hollow region in the centre. If you add more bone matric to the centre, its going to make it thicker!