Fig. 11.1. Lateral view of the right external ear.Fig. 11.2. The right auricle has been retracted anteriorly, and the skin and subcutaneous tissue have been removed.Fig. 11.3. The right auricle has been removed to expose the external acoustic meatus.The sternocleidomastoid muscle has been removed. The mastoid process is exposed. Fig. 11.4. Superficial drilling of the right mastoid process has been performed to expose the mastoid air cells.Fig. 11.5. The aditus ad antrum has been exposed on the right side.Fig. 11.6. The incus, facial nerve, and chorda tympani have been exposed through the mastoid on the right side.Fig. 11.7. The semicircular canals, sigmoid sinus, facial nerve, auditory ossicles, posterior fossa, and middle fossa dura mater have been exposed through the mastoidprocess, right side. (For the internal ear dissection through the middle cranial fossa, see Chapters 24 and 25.)
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