Archenteron

Japanese: 原腸 - げんちょう(英語表記)archenteron
Archenteron
The cavity surrounded by the inner layer of the gastrula (gastrula) and its inner wall. During embryonic development, this cavity is formed by gastrulation and is surrounded by the endoderm layer. It is the primordial organ of the digestive tract, and later gives rise to the intestine and associated organs such as the liver and pancreas. In some animals (vertebrates), in addition to the endoderm, the mesoderm forms, and in addition to the intestine, the notochord, somites, etc. are produced.

Source: Encyclopaedia Britannica Concise Encyclopedia About Encyclopaedia Britannica Concise Encyclopedia Information

Japanese:
嚢胚 (原腸胚) の内層に囲まれた腔所,およびその内壁。胚の発生過程において,原腸形成によって新しく生じた腔所で,内胚葉層で囲まれる。消化管の原器で,のち主として腸管,それに付属する肝臓,膵臓などの器官がつくられる。動物によっては (脊椎動物) 内胚葉のほかに中胚葉を形成,腸管のほかに脊索,体節などを生じる。

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