Figure 1From: Bone regenerative medicine: classic options, novel strategies, and future directionsSEM ultramicrographs of microstructure of natural bone grafts. (A) Trabecular or cancellous bone graft. Note the porous honey comb-like microstructure of cancellous bone graft. ( B) Cortico-cancellous bone graft. ( C) Cortical or compact bone graft (scalebars ( A - C) 100 μm).Back to article page