Where does “肛門括約筋” come from?

肛門括約筋 (Japanese) comes from Japanese 肛門, from Middle Chinese こうもん.

肛門括約筋 (Japanese): anal sphincter

Definitions

  1. anal sphincter

Ancestry of “肛門括約筋”, step by step

肛門括約筋 traces back through two separate lines of ancestry.

via Japanese 肛門

StepLanguageWordMeaning
1Japanese肛門anus
2Middle Chineseこうもん—

via Japanese 括約筋

StepLanguageWordMeaning
1Japanese括約筋sphincter
2Japanese筋muscle; tendon; road
Every word from Middle Chinese こうもん →Every word from Japanese 肛門 →