峡きょう部ぶ

noun, noun which may take the genitive case particle 'no'

isthmus

Anatomical term for a narrow passage connecting two larger structures, such as the isthmus of the thyroid or the uterine isthmus.

• 甲こう状じょう腺せん峡きょう部ぶは気き管かんの前ぜん方ぽうに位い置ちする。

  The isthmus of the thyroid gland is located in front of the trachea.

• 峡きょう部ぶの狭きょう窄さくが症しょう状じょうを引ひき起おこすことがある。

  Narrowing of the isthmus can sometimes cause symptoms.