The auricle develops from:: (A) 1st branchial cleft, (B) 1st branchial arch, (C) 1st, 2nd and 3rd branchial arch, (D) 1st and 2nd branchial arch
Answer is D. Ans. (d) 1st and 2nd branchial archRef: P.L. Dhingra 6th ed. /11* The auricle develops from fusion of mesenchyme of 1st and 2nd branchial arch.* External ear canal develops from the ectoderm of 1st branchial cleft.* Tympanic membrane is derived from all the three germ layers contributed by 1st pharyngeal/ branchial arch.