The rhombencephalon forms into another pair, called the metencephalon and the myelencephalon.

菱形脑形成另一对，称为后脑和髓脑。

The least dramatic changes occur in the three most caudal or lower sections: the mesencephalon, the metencephalon, and the myelencephalon.

最不明显的变化发生在最尾侧或下部的三个部分：中脑、后脑和髓脑。