…It contains a large amount of calcium salts (60-70%), mainly calcium phosphate, but also small amounts of calcium carbonate, magnesium phosphate, calcium fluoride, etc. Its histological structure consists of scattered small osteocytes and a large amount of intercellular matrix (broad definition). The intercellular matrix consists of thin collagen fibrils that exist densely in a regular arrangement and the matrix between them, and the calcium salts mentioned above form apatite crystals and are deposited in this matrix. … *Some of the terminology that mentions "osteocyte" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…石灰塩分を多量(60~70%)に含んでおり,石灰塩分は主としてリン酸石灰であるが,そのほかにわずかの炭酸石灰,リン酸マグネシウム,フッ化石灰などを含む。その組織学的構造は,点在する小さい骨細胞osteocyteと多量の細胞間質(広義の基質)とからなる。細胞間質は一定の配列をなして密に存在する細い〈膠原原繊維〉と,その間の〈基質〉とからなり,上記の石灰塩分はアパタイト結晶をなして,この基質の中に沈着している。… ※「osteocyte」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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