最終更新日：2025/11/20

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(anatomy) A ringlike band of muscle that surrounds a bodily opening (such as the anus or the openings of the stomach), constricting and relaxing as required for normal physiological functioning.

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sphincter

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元となった辞書の項目

sphincter

IPA（発音記号）

/ˈsfɪŋk.tə(ɹ)/

名詞

(anatomy) A ringlike band of muscle that surrounds a bodily opening (such as the anus or the openings of the stomach), constricting and relaxing as required for normal physiological functioning.

日本語の意味

括約筋 - 体の開口部（例：肛門や胃の開口部）を取り巻く輪状の筋肉で、正常な生理機能を維持するために必要に応じて収縮および弛緩する

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The sphincter relaxed, allowing the meal to pass from the stomach into the small intestine.

Google翻訳 / DeepL翻訳

括約筋が緩んで、食べ物が胃から小腸へと移った。

詳細

意味（1）

(anatomy) A ringlike band of muscle that surrounds a bodily opening (such as the anus or the openings of the stomach), constricting and relaxing as required for normal physiological functioning.