This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Pharyngeal Arches, Subject name: Anatomy
The auricle develops from: 
Select and explain. 
A. 1st branchial cleft, B. 1st branchial arch, C. 1st, 2nd and 3rd branchial arch, D. 1st and 2nd branchial arch
D: 1st and 2nd branchial arch
Answer: D: 1st and 2nd branchial arch 
Explanation: 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.