Pinna / Auricle
Pinna / Auricle Q. 1 Ear pinna develops from ____________ A Ectoderm B Endoderm C Mesoderm D All Q. 1 Ear pinna develops from ____________ A Ectoderm B Endoderm C Mesoderm D All Ans. A Explanation: Ans:A.)Ectoderm First branchial cleft is the precursor of external auditory canal. Around the sixth week of embryonic life, a […]





