What kind of section would have to be made to cut the brain into anterior and posterior parts?

It is the Coronal Section. Picture result for coronal area A coronal plane which is otherwise called the frontal plane is any vertical plane that partitions the body into ventral and dorsal areas. It is one of the three fundamental planes of the body used to portray the area of body parts in connection to each other.

Ineed more info for this, i don’t quite understand what you’re asking.