Which of the following statement is true about Pinna except:
High-Yield Explanation
Ans. c. Develop from lst pharyngeal cleft onlyFirst branchial cleft is the precursor of external auditory canal.Around the sixth week of embryonic life, a series of six tubercles appear around the first branchial cleftBranchial clefts are ectodermal in origin.Pinna develops from 1st and 2nd pharyngeal arch