semicircular canals (of bony labyrinth)

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semicircular canals (of bony labyrinth)

[TA]

the organ of balance; the three bony tubes of the labyrinth of the inner ear within which the membranous semicircular ducts are located; they lie in planes at right angles to each other and are known as anterior semicircular canal [TA] (canalis semicircularis anterioris [TA]), posterior semicircular canal [TA] (canalis semicircularis posterioris [TA]), and lateral semicircular canal [TA] (canalis semicircularis lateralis [TA]).

Synonym(s): canales semicircularis ossei [TA], bony semicircular canals

Farlex Partner Medical Dictionary © Farlex 2012

sem·i·cir·cu·lar ca·nals (of bon·y lab·y·rinth)

(semē-sĭrkyū-lăr kă-nalz bōnē labi-rinth) [TA]

Organ of balance; three bony tubes of labyrinth of inner ear within which membranous semicircular ducts are located; lie in planes at right angles to each other and are known as anterior semicircular canal [TA] posterior semicircular canal [TA], and lateral semicircular canal [TA].

Medical Dictionary for the Dental Professions © Farlex 2012

References in periodicals archive ?

The anatomical reference points of both inner ears (lateral semicircular canals) could be lined symmetrically in the same plane for optimal quantitative measurements and an accurate comparison of both sides.

Multidetector Computed Tomography Findings of Auto-Evacuated Secondary Acquired Cholesteatoma: A Morphologic and Quantitative Analysis

Fistulas were present in the lateral semicircular canals of 19 patients, in the superior semicircular canals of four patients, in the posterior semicircular canals of two patients, in the cochlea-vestibule in three patients, and in the round window of one patient.

In the literature, it has been determined that the worst prognoses are for cochlear fistulas and the best are for fistulas of the lateral semicircular canal (10).

We observed an increase in the bone conduction thresholds in two patients who had type 1 and 2a fistulas in the lateral semicircular canal. Moreover, in short-term follow-ups (4 months-4 years), cholesteatoma and related complications were completely prevented.

Lateral semicircular canal fistula in cholesteatoma: diagnosis and management.

Assessment of Bone Conduction Thresholds After Surgical Treatment in Patients with Labyrinthine Fistula

Frequency-specific recovery of horizontal VOR after inactivation of the lateral semicircular canals. J Neurophysiol 1996;76(5):2941-53.

The head impulse test as a predictor of videonystagmography caloric test lateralization according to the level of examiner experience: A prospective open-label study

The caloric test primarily evaluates the function of the lateral semicircular canals, and the stimulus that is used has a very low frequency (0.003 Hz).

Correlation of o-VEMP and v-HIT Test Results with Caloric Test Results iSn Peripheral Vestibular Disorders

In 21 (26.9%) out of 78 malformed inner ears, lateral semicircular canals were found to be aplastic or hypoplastic and in 10 (12.8%) inner ears lateral semicircular canal was dilated.

Radiological assessment of the Indian children with congenital sensorineural hearing loss