Perforating canals
A) are arranged parallel to the long axis of the central canal.
B) are always associated with osteons in cancellous bone.
C) provide passageways for linking the blood vessels of the central canals with those of the periosteum and the marrow cavity.
D) occur in growing juvenile bone, but are obliterated in adult bone.
E) are arranged in concentric layers around a central canal.
C) provide passageways for linking the blood vessels of the central canals with those of the periosteum and the marrow cavity.
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