… a small endodermal endocrine organ formed from a projection of the pharyngeal epithelium; present in all vertebrates, but in some classes of animals there is one or two, and in some fish there are many scattered thyroid glands. The endostyle of the ascidian and lamprey larvae is phylogenetically homologous to the thyroid gland. Histologically, the thyroid gland is a mass of follicles. … *Some of the terminology that mentions "endostyle" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…咽頭上皮の突起からできる小さい内胚葉性の内分泌器官で,脊椎動物すべてに存在するが,動物の綱によって1個あるいは2個であったり,さらに魚類の中には多数に分かれて散在するものもある。ホヤやヤツメウナギ幼生の内柱endostyleが系統発生学的に甲状腺と相同のものである。甲状腺は組織学的にみると濾胞の集団である。… ※「endostyle」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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