幽ゆう門もん

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

pylorus; opening from stomach to duodenum

Anatomical term for the lower part of the stomach that connects to the duodenum.

• 幽ゆう門もんは胃いの出で口ぐちにあたる部ぶ分ぶんです。

  The pylorus is the part that serves as the exit of the stomach.

• 幽ゆう門もん狭きょう窄さくは乳にゅう児じにみられることがあります。

  Pyloric stenosis can occur in infants.