File:Cortical remodeling unit.png

Summary

Longitudinal section through a cortical remodeling unit with corresponding transverse sections A: Multinucleated osteoclasts in Howship lacunae advancing longitudinally from right to left and radially to enlarge a resorption cavity. B: Perivascular spindle-shaped precursor cells. C: Capillary loop. D: Mononuclear cells lining reversal zone. E: Osteoblasts apposing bone centripetally in radial closure and its perivascular precursor cells. F: Flattened cells lining Haversian canal of completed Haversian system. Transverse sections at dif ferent stages of development: (I) resorption cavities lined with osteoclasts; (II) completed resorption cavities lined by mononuclear cells, the reversal zone; (III) forming Haversian system or osteons lined with osteoblasts that had recently apposed three lamellae; and (IV) completed Haversian system with flattened bone cells lining canal. Cement line (G); osteoid (stippled) between osteoblast (O) and mineralized bone

Copyright ee WSS. 1988. The skeletal tissues. In: Weiss L, editor. Cell and tissue biology: a textbook of histology. 6th ed. Baltimore: Urban & Schwarzenberg, Inc

Licencing

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