瞳孔 どうこう括約 かつやく すじではありませんでした
dōkō katsuyakusujidewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 瞳孔括約筋

1. Was not the pupillary constrictor muscle.

Past/Perfective
Negative
Polite
Formal Register
Anatomy