かみ経筋 けいきん接合 せつごう ではありませんでした
kami keikin setsu gōbudewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 神経筋接合部

1. It was not a neuromuscular junction.

Past/Perfective
Negative
Polite
Formal Register
Anatomy