Anatomy General anatomy 87f84d04 The upper lip is derived from A Maxillary prominence and mandibular prominence B Maxillary prominence and medial nasal prominence C Maxillary prominence and lateral nasal prominence D Mandibular prominence and medial nasal prominence High-Yield Explanation The upper lip is formed by the fusion of two maxillary prominences with the two medial nasal prominences Ref : Langman's Medical Embryology 14e pg 295,298.