Question

which is an accurate description of appositional bone growth?
osteoblasts build bone at the circumferential lamellae while osteoclasts widen the medullary cavity
osteoclasts build bone at the concentric lamellae while osteoblasts build bone at the interstitial lamellae.
osteoblasts build bone at the concentric lamellae while osteoclasts build bone at the epiphyses.
osteocytes build bone at the interstitial lamellae while osteoclasts expand the length of the medullary cavity.
osteocytes and osteoclasts expand the bone at its epiphyses, chondrocytes construct cartilage.

Explanation:

Appositional bone growth involves osteoblasts building bone at the circumferential lamellae (outer - layer bone deposition) and osteoclasts resorbing bone on the inner side to widen the medullary cavity. Osteoblasts are bone - forming cells and osteoclasts are bone - resorbing cells.

Answer:

Osteoblasts build bone at the circumferential lamellae while osteoclasts widen the medullary cavity