Anatomy Cleft of upper lip is formed due to failure A Failure of fusion of maxillary process to mandibular process B Medial nasal and two mandibular process C Medial nasal and lateral nasal process D Medial nasal and maxillary process 💡 Explanation Cleft of upper lip is formed due to failure ✓ Correct Answer: D. Medial nasal and maxillary process