[Features of the relief of the mineralized surface of the lacunae and canaliculi in lamellar bone].
By means of cryofractography relief of mineralized surface of lacunae and canaliculi of human lamellar bone has been studied. Their walls consist of mineralized collagen fibrils and mineralized ground substance. The intrafibrillar crystals are rod-shaped and are arranged as elongated helicoidal chains. Mineral crystals localized in the interfibrillar spaces are plate-shaped and are arranged in parallel layers. Net of microcanaliculi with diameter of 20-50 nm is found in bone matrix. This increases the surface available for the exchange between mineral and bone extracellular fluid.
Doktorov
A A
AA
Denisov-Nikol'skiĭ
Iu I
IuI
D000328:Adult; D015519:Bone Density / Q000502:physiology*; D001842:Bone and Bones / Q000648:ultrastructure*; D003094:Collagen / Q000648:ultrastructure; D003460:Crystallization; D006801:Humans; D013499:Surface Properties
D003094:Collagen
Osobennosti rel'efa mineralizovannoĭ poverkhnosti lakun i kanal'tsev v plastinchatoĭ kosti.