脳底 のうてい動脈 どうみゃくじゃありませんでした
nō teidōmyakujārimasendeshita

Noun
Desu Copula

The polite, past negative form of 脳底動脈

1. Was not a cerebral artery.; Was not a brainstem artery.

Past/Perfective
Negative
Polite
Terminal Form