auditory canal


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Related to auditory canal: External Auditory Meatus, ear canal, oval window, ears, Internal Auditory Canal

ex·ter·nal a·cous·tic me·a·tus

[TA]
the passage leading inward through the tympanic portion of the temporal bone, from the auricle to the tympanic membrane; it consists of a bony (inner) portion and a fibrocartilaginous (outer) portion, the cartilaginous external acoustic meatus.

auditory canal

n.
Either of two passages of the ear, the internal or the external auditory canal.

auditory canal

auditory canal

The 2-part passage through which sound is carried into the cranial cavity. The 1st part or external acoustic meatus, extends to the external surface of the temporal bone and is divided into an outer cartilaginous part and an inner bony part. The 2nd part, the internal acoustic meatues is located in the petrous portion of the temporal bone and is the passage through which the facial, intermediate, and vestibulocochlear nerves and labyrinthine artery pass to the cranial cavity.

auditory canal

or

external auditory meatus

the canal leading from the PINNA (outer ear) to the ear drum.
References in periodicals archive ?
1) Involvement of the external auditory canal can manifest as mastoid swelling, aural polyps, otorrhea, and erosion of the bony canal wall with sagging of the canal wall skin.
She had a bifid external auditory canal and two skin tags in front of the external auditory canal.
A longitudinal fracture through the external auditory canal, middle ear and mastoid bone was present.
A simple reconstructive procedure for radiation-induced necrosis of the external auditory canal.
Designed primarily for clinical use, this very well-illustrated text considers the external auditory canal, middle east and mastoid air cells, facial nerve and inner ear along with the temporal bone.
We report an interesting case of a patient who presented with gradual onset of deafness and external auditory canal swellings, mistaken initially for multiple simple exostoses of both ear canals, in combination with mild background sensorineural hearing loss.
Anything which irritates the external auditory canal stimulates the wax glands.
Through a series of diagnostic tests and visits to specialists, it was discovered that he had a facial nerve neuroma (tumor) near the end of his auditory canal.
8-mm enhancing lesion involving the right cerebellopontine angle with extension into the right internal auditory canal and widening of the canal (figure 1).
Approximately 25% of all cases of extranodal non-Hodgkin lymphoma (NHL) occur in the head and neck region; NHL of the external auditory canal (EAC) and thyroid gland are rare.
Carcinomas of the external auditory canal are rare, and they are associated with a relatively poor prognosis.
A 67-year-old man was referred for evaluation of bilateral external auditory canal cholesteatomas.

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