Fig 9. 93W6141 Bone, Ground preparation (cs).
This figure reveals a cross-sectioned area of a long bone at low
magnification and includes the outer or peripheral aspect of the
bone, identified by the presence of outer circumferential
lamellae (OCL). The osteons or Haversian systems appear as
circular profiles. Between the osteons, there are interstitial
lamellae (IL), the remnants of previously existing osteons.
Osteons are essentially cylindrical structures. In the shaft of a
long bone, the long axes of the osteons are oriented parallel to
the shaft of a long bone.