<prompt> The upper lip is derived fromMaxillary prominence and mandibular prominenceMaxillary prominence and medial nasal prominenceMaxillary prominence and lateral nasal prominenceMandibular prominence and medial nasal prominence  <response>: The upper lip is formed by the fusion of two maxillary prominences with the two medial nasal prominences Ref : Langmans Medical Embryology 14e pg 295,298. 