Pars intermedia of hypophysis cerebri from?
The intermediate pas of pituitary gland develop from an ectodermal diveiculum called RATHKE&;S pouchThis grows upwards from the roof of stomatodaeum, just in front of buccopharyngeal membrane.(Ref: human embryology by IB Singh 9th edition,pg-310)
Endoderm
Mesoderm
Oral ectoderm
Neuroectoderm
Brain 