What is the length of external auditory canal?
Ans. (a) 2.5 cmRefi Dhingra's ENT 5th ed. / 4* Length of external auditory canal- 24 mm (2.4cm)* Shape: S- shaped* Outer 1/3rd cartilaginous part (8mm)* Inner 2/3rd: Bony part (16mm)
2.5 cm
1.5 cm
1cm
2 cm
Ear