神経 しんけい交叉 こうさではありませんでした
shishinkeikōsadewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 視神経交叉

1. Was not optic chiasm.; Was not the optic chiasm.

Past/Perfective
Negative
Polite
Formal Register
Anatomy