Once there is neural proliferation, there are three swellings that become visible at the anterior end of the human neural tube; during the 4th week of prenatal development. these swellings are known as the:

Respuesta :

3 swellings are (forebrain, midbrain, hindbrain) 

forebrain- the prosencephalon.

midbrain- the mesencephalon.

hindbrain- the rhombencephalon