This process occurs at approximately 14 days. Reversal - Over time, osteoblasts begin to replace osteoclasts at the site of bone turnover. Formation - Osteoblasts begin to lay down new lamellar bone on top of old bone.

How is lamellar bone formed?

Lamellar bone is usually formed in apposition to an existing surface. For the formation of lamellar bone, osteoblasts assume a distinct three-dimensional orientation in coordination with neighbor osteoblasts, and they form a continuous layer of bone in a unidirectional way.

Where can lamellar bone be found?

Lamellar bone makes up the compact or cortical bone in the skeleton, such as the long bones of the legs and arms. In a cross-section, the fibers of lamellar bone can be seen to run in opposite directions in alternating layers, much like in plywood, assisting in the bone's ability to resist torsion forces.