Middle ear

The middle ear, a cavity in the temporal bone, is lined by a mucosa whose epithelium is primarily simple squamous. The middle ear is bounded by the tympanic membrane laterally and the bony wall of the inner ear medially. It communicates with the mastoid air cells posteriorly and with the nasopharynx, via the Eustachian tube, anteriorly. 10x

The middle ear, a cavity in the temporal bone, is lined by a mucosa whose epithelium is primarily simple squamous. The middle ear is bounded by the tympanic membrane laterally and the bony wall of the inner ear medially. It communicates with the mastoid air cells posteriorly and with the nasopharynx, via the Eustachian tube, anteriorly. 10x

The middle ear, a cavity in the temporal bone, is lined by a mucosa whose epithelium is primarily simple squamous. The middle ear is bounded by the tympanic membrane laterally and the bony wall of the inner ear medially. It communicates with the mastoid air cells posteriorly and with the nasopharynx, via the Eustachian tube, anteriorly. 10x

The middle ear, a cavity in the temporal bone, is lined by a mucosa whose epithelium is primarily simple squamous. The middle ear is bounded by the tympanic membrane laterally and the bony wall of the inner ear medially. It communicates with the mastoid air cells posteriorly and with the nasopharynx, via the Eustachian tube, anteriorly. 10x

The middle ear, a cavity in the temporal bone, is lined by a mucosa whose epithelium is primarily simple squamous. The middle ear is bounded by the tympanic membrane laterally and the bony wall of the inner ear medially. It communicates with the mastoid air cells posteriorly and with the nasopharynx, via the Eustachian tube, anteriorly. 10x

The image shown in the right panel is from a non-human species, as evidenced by the protrusion of the cochlea into the middle ear cavity and by the greater number of turns of the cochlea compared with the human.