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  2. Middle ear - Wikipedia

    en.wikipedia.org/wiki/Middle_ear

    The middle ear is hollow in the tympanic cavity and Eustachian tube. In a high-altitude environment or on diving into water, there will be a pressure difference between the middle ear and the outside environment. This pressure will pose a risk of bursting or otherwise damaging the tympanum (eardrum) if it is not relieved.

  3. Tympanic cavity - Wikipedia

    en.wikipedia.org/wiki/Tympanic_cavity

    The tympanic cavity is a small cavity surrounding the bones of the middle ear. Within it sit the ossicles, three small bones that transmit vibrations used in the detection of sound . Structure

  4. Ear - Wikipedia

    en.wikipedia.org/wiki/Ear

    The ear canal of the outer ear is separated from the air-filled tympanic cavity of the middle ear by the eardrum. The middle ear contains the three small bones—the ossicles—involved in the transmission of sound, and is connected to the throat at the nasopharynx, via the pharyngeal opening of the Eustachian tube.

  5. Eustachian tube - Wikipedia

    en.wikipedia.org/wiki/Eustachian_tube

    Given the greater access to the ear anatomy using endoscopic methods, it has been suggested that the bony part of the eustachian tube is really the anterior extension of the middle ear cavity, or the "Protympanum". The term "Eustachian Tube" should be limited to the fibrocartilaginous structure connecting the protympanum to the nasopharynx. [4]

  6. Epitympanic recess - Wikipedia

    en.wikipedia.org/wiki/Epitympanic_recess

    The epitympanic recess is the portion of the tympanic cavity (of the middle ear) situated superior to the tympanic membrane. [1]: 414 The recess lodges the head of malleus, and the body of incus. [1]: 416

  7. Mastoid antrum - Wikipedia

    en.wikipedia.org/wiki/Mastoid_antrum

    The mastoid antrum (tympanic antrum, antrum mastoideum, Valsalva's antrum) is an air space in the petrous portion of the temporal bone, communicating posteriorly with the mastoid cells and anteriorly with the epitympanic recess of the middle ear via the aditus to mastoid antrum (entrance to the mastoid antrum). These air spaces function as ...

  8. Tympanic nerve - Wikipedia

    en.wikipedia.org/wiki/Tympanic_nerve

    It passes through the petrous part of the temporal bone within the tympanic canaliculus that is situated within the bony ridge separating the carotid canal and the jugular foramen to reach the middle ear. [2] In the tympanic cavity of the middle ear, it ramifies upon the promontory of tympanic cavity to form the tympanic plexus. [2] [1 ...

  9. Auditory system - Wikipedia

    en.wikipedia.org/wiki/Auditory_system

    Auditory ossicles from a deep dissection of the tympanic cavity. Sound waves travel through the ear canal and hit the tympanic membrane, or eardrum. This wave information travels across the air-filled middle ear cavity via a series of delicate bones: the malleus (hammer), incus (anvil) and stapes (stirrup).