Fig. 1. Right panel: trabecular bone is configured as thin plates of mineralized bone matrix enveloped by a large surface area which facilitates initiation of bone remodelling. Left panel: cortical bone is configured with a larger volume of mineralized bone matrix enveloped by the periosteal, intracortical and endocortical surfaces. The smaller surface area relative to the large matrix volume results in the cortical matrix being less accessible to being remodelled (see text).