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  2. Tympanic nerve - Wikipedia

    en.wikipedia.org/wiki/Tympanic_nerve

    The tympanic nerve (Jacobson's nerve) is a branch of the glossopharyngeal nerve passing through the petrous part of the temporal bone to reach the middle ear. It provides sensory innervation for the middle ear, the Eustachian tube, the parotid gland, and mastoid cells. It also carries parasympathetic fibers destined for the parotid gland.

  3. Chorda tympani - Wikipedia

    en.wikipedia.org/wiki/Chorda_tympani

    Injury to the chorda tympani nerve leads to loss or distortion of taste from anterior 2/3 of tongue. [13] However, taste from the posterior 1/3 of tongue (supplied by the glossopharyngeal nerve) remains intact. The chorda tympani appears to exert a particularly strong inhibitory influence on other taste nerves, as well as on pain fibers in the ...

  4. Sensorineural hearing loss - Wikipedia

    en.wikipedia.org/wiki/Sensorineural_hearing_loss

    It is possible that the high blood glucose levels associated with diabetes cause damage to the small blood vessels in the inner ear, similar to the way in which diabetes can damage the eyes and the kidneys. Similar studies have shown a possible link between that hearing loss and neuropathy (nerve damage). Tumor

  5. Middle ear - Wikipedia

    en.wikipedia.org/wiki/Middle_ear

    These are the horizontal portion of the facial nerve and the chorda tympani. Damage to the horizontal branch during ear surgery can lead to paralysis of the face (same side of the face as the ear). The chorda tympani is the branch of the facial nerve that carries taste from the ipsilateral half (same side) of the tongue.

  6. Eardrum - Wikipedia

    en.wikipedia.org/wiki/Eardrum

    In the anatomy of humans and various other tetrapods, the eardrum, also called the tympanic membrane or myringa, is a thin, cone-shaped membrane that separates the external ear from the middle ear. Its function is to transmit changes in pressure of sound from the air to the ossicles inside the middle ear, and thence to the oval window in the ...

  7. Conductive hearing loss - Wikipedia

    en.wikipedia.org/wiki/Conductive_hearing_loss

    Conductive hearing loss (CHL) occurs when there is a problem transferring sound waves anywhere along the pathway through the outer ear, tympanic membrane (eardrum), or middle ear . If a conductive hearing loss occurs in conjunction with a sensorineural hearing loss, it is referred to as a mixed hearing loss.

  8. Ear pain - Wikipedia

    en.wikipedia.org/wiki/Ear_pain

    The diagnosis is made by the combination of symptoms and examination of the tympanic membrane for redness, bulging, and/or a middle ear effusion (collection of fluid within the middle ear). [5] Complications of otitis media include hearing loss, facial nerve paralysis, or extension of infection to surrounding anatomic structures, including: [24]

  9. Causes of hearing loss - Wikipedia

    en.wikipedia.org/wiki/Causes_of_hearing_loss

    Auditory neuropathy a disorder of poor speech perception even though the tympanic membrane, middle ear structures, and cochlear nerve are intact. [29] [30] People with auditory neuropathy may have normal hearing or hearing loss ranging from mild to severe. Inherited disorders People with Down syndrome are more likely to have hearing loss. [31]