…islets are islet-like structures distributed within the pancreas that perform the endocrine function of secreting insulin, glucagon, etc. They are also called pancreatic islets. They generally consist of tens to hundreds of cells, forming polyhedra with diameters of 50 to 200 μm. They are distributed widely throughout the pancreas, but are more prevalent in the tail. The islets of Langerhans have well-developed capillaries, and the secreted hormones are transported throughout the body via these blood vessels. The glandular cells that make up the islets include A cells, which stain red with acidic dyes, B cells, which stain blue-purple with basic dyes, and D cells, which stain black with silver impregnation. … *Some of the terminology that mentions "Langerhans, P." is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…膵臓内に分布する島様の構造体で,インシュリン,グルカゴンなどを分泌する内分泌作用を営む。膵島ともいう。一般に数十個から数百個の細胞からなり,直径50~200μmの多角体をなす。膵臓全体に広く分布するが,尾部に多い。ランゲルハンス島には毛細血管が発達しており,分泌されたホルモンはこの血管を経て体内に運ばれる。島をなしている腺細胞には,赤い酸性色素に染まるA細胞,塩基性色素で青紫色に染まるB細胞,鍍銀法で黒く染まるD細胞がある。… ※「Langerhans,P.」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 |
>>: Langenscheidt, G. (English spelling)
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