膀胱 ぼうこう括約 かつやく すじではありません
bōkōkatsuyakusujidewārimasen

Noun
Desu Copula
Negation Auxiliary

The polite negative form of 膀胱括約筋

1. Not a bladder sphincter.; Not the bladder sphincter.

Negative
Polite
Formal Register