The characteristic cell reaction in the epithelial layer at the lower surface of the nasal septum during a secondary palate formation.
D000818:Animals; D002454:Cell Differentiation; D004622:Embryo, Mammalian; D004848:Epithelium / Q000196:embryology*; D006651:Histocytochemistry; D006801:Humans; D051379:Mice; D009300:Nasal Septum / Q000166:cytology / Q000196:embryology*; D010159:Palate; D051381:Rats