Bone remodeling
Deposition: the biological process of laying down the bone
Resorption: the biological process of removing the bone
Remodeling: A basic part of bone growth involves simultaneous deposition and
resorption on all inner and outer surfaces of the entire bone. It
provides regional changes in shape, dimensions, and proportions.
Drift:  Growth movement of an enlarging portion of a bone by the remodeling. The
combinations of deposition and resorption result in growth movement
toward the depository surface.
Displacement: The growth movement of a whole bone as a unit. The bone is carried
away from its articulation in relation to other bones.
Direction of growth: 1) the direction of drift
                                       2) the direction of displacement
                                       3) the net direction of drift and displacement.