The ultrastructure of the osteocyte

Part of the Electron Microscopy in Biology and Medicine book series (EMBM, volume 7)


Among the cells of the body, the osteocyte is in a very special situation because of its position in an enclosing lacuna within a mineralized matrix. It is not completely isolated or recluse, however, because its lacuna is not hermetically closed. In fact, many canaliculi spread out from it, penetrating the surrounding tissue in every direction and allowing the passage of a thick network of osteocytic cytoplasmic processes that set up many contacts with other osteocytes, bone cells, and structures. Moreover, although the permeability of mineralized matrix is low, it is enough to allow the osteocyte to be reached by diffusible substances.


Uranyl Acetate Bone Cell Bone Matrix Collagen Fibril Brush Border 
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Copyright information

© Kluwer Academic Publishers 1990

Authors and Affiliations

  1. 1.Dipartimento di BiopatologiaUmana Sezione di Anatomia PatologicaRomaItaly

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