有髄 ゆうずい神経 しんけいではありませんでした
yū zuishinkeidewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 有髄神経

1. Was not myelinated.; Was not a myelinated nerve.

Past/Perfective
Negative
Polite
Formal Register
Anatomy