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auricle (lobe or pinna) antitragus concha helix lobule tragus external auditory meatus canal middle mastoid air cells cross-section mastoid antrum ossicles malleus, 2nd view incus, 2nd view stapes tegmen tympani tympanic (middle ear) cavity, 2nd view tympanic membrane (eardrum) 2nd view inner cochlear duct superior semicircular canal, 2nd view |