the basic functional unit of a bone is
The basic functional unit of compact bone is the osteon (Haversian system). The osteon consists of concentric lamellae of bone matrix arranged around a central (Haversian) canal containing blood vessels. The osteons are cylindrical and aligned parallel to the long axis of the bone.he basic functional unit of compact bone is the osteon (Haversian system). The osteon consists of concentric lamellae of bone matrix arranged around a central (Haversian) canal containing blood vessels. The osteons are cylindrical and aligned parallel to the long axis of the bone.