- Middle ear (tympanic cavity): narrow, slit-like air-filled cavity in the petrous temporal bone, between the external and internal ear, transmitting sound via three auditory ossicles.
- With the pharyngotympanic tube in front and mastoid antrum behind, it forms one diverticulum from the nasopharynx, shaped like a pistol (tube as nozzle, cavity as body, antrum as handle).
middle ear with the pharyngotympanic tube and mastoid antrum Middle ear with the pharyngotympanic tube and mastoid antrum.