The bony eac skin is different from the normal skin all over the body. It doesn't have hair secreting glands etc how is it histological different ? Does topical anaesthesia act on it ? (Lidocaine 4 % cotton pledgets )
The skin of the bony part of the auditory tube is thin, formed of four layered epidermis, as the stratum lucideum is absent, the dermis is highly vascular and easily bleed, the hypodermis ( fatty loose CT) is absent and the skin attached directly to the underlying periosteum.