Cailaginous pa of external auditory canal is: (A) Medial 1/3, (B) Lateral 1/3, (C) Medial 2/3, (D) Lateral 2/3
Answer is B. Lateral 1/3rd of the external auditory canal is cailaginous and medial 2/3rd is bony.Ref: Hazarika; 3rd ed; Pg 9