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Anatomy Pharyngeal Arches 3e9db3d7

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
High-Yield 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.
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