Anatomy External acoustic meatus is derived from A Dorsal part of the first ectodermal cleft B Ventral part of the first ectodermal cleft C Dorsal part of the 2nd ectodermal cleft D Ventral part of the 2nd ectodermal cleft 💡 Explanation External acoustic meatus is derived from ✓ Correct Answer: A. Dorsal part of the first ectodermal cleft