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Related Concept Videos

The Vestibular System01:29

The Vestibular System

43.2K
The vestibular system is a set of inner ear structures that provide a sense of balance and spatial orientation. This system is comprised of structures within the labyrinth of the inner ear, including the cochlea and two otolith organs—the utricle and saccule. The labyrinth also contains three semicircular canals—superior, posterior, and horizontal—that are oriented on different planes.
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Equilibrium and Balance01:15

Equilibrium and Balance

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The inner ear assumes dual functionalities of auditory perception and equilibrium maintenance. The vestibule is the organ responsible for balance. This organ contains mechanoreceptors, specifically hair cells, endowed with stereocilia, which aid in deciphering information regarding the position and motion of our heads. Two intrinsic components, the utricle and saccule, help perceive head position, while the semicircular canals track head movement. Neurological messages initiated in the...
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Anatomy of the Ear01:16

Anatomy of the Ear

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Auditory sensation, commonly called hearing, involves the transformation of sonic waves into neural impulses facilitated by the structures of the auditory organ. The prominent, flesh-like structure on the side of the head, called the auricle, directs sound waves towards the auditory canal. The auricle is often mislabeled as the pinna, a term more aligned with mobile structures like a feline's external ear. The auditory canal penetrates the cranium via the external auditory meatus of the...
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The Cochlea01:13

The Cochlea

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The cochlea is a coiled structure in the inner ear that contains hair cells—the sensory receptors of the auditory system. Sound waves are transmitted to the cochlea by small bones attached to the eardrum called the ossicles, which vibrate the oval window that leads to the inner ear. This causes fluid in the chambers of the cochlea to move, vibrating the basilar membrane.
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Auditory Pathway01:15

Auditory Pathway

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Auditory pathways constitute the complex neural circuits responsible for transmitting and interpreting auditory information from the peripheral auditory system to the brain. Sound waves are initially captured by the outer ear, funneled through the ear canal, and reach the tympanic membrane (eardrum). These vibrations are transmitted via the middle ear's ossicles to the inner ear's cochlea.
When viewed cross-sectionally, the cochlea reveals the scala vestibuli and scala tympani flanking...
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Related Experiment Video

Updated: Jan 7, 2026

Harvest of Vestibular End-Organs under Physiologic Conditions during Labyrinthectomy
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Harvest of Vestibular End-Organs under Physiologic Conditions during Labyrinthectomy

Published on: November 29, 2024

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Post-Traumatic Cochlear and Vestibular Pneumolabyrinth.

Santiago Almanzo1,2, Catalina Bancalari-Díaz1, Miguel Saro-Buendía1,2

  • 1Department of Otolaryngology Hospital Universitari i Politècnic La Fe Valencia Spain.

Clinical Case Reports
|January 5, 2026
PubMed
Summary
This summary is machine-generated.

Cochlear pneumolabyrinth, an indicator of inner ear trauma, strongly predicts permanent hearing loss. Early CT scans help guide treatment decisions for hearing restoration.

Keywords:
cochlear traumapneumolabyrinthsensorineural hearing losstemporal bone fracturevestibular dysfunction

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Area of Science:

  • Otolaryngology
  • Radiology
  • Neurosurgery

Background:

  • Otic capsule trauma can lead to significant auditory and vestibular deficits.
  • Cochlear pneumolabyrinth is a recognized radiographic finding associated with trauma.

Purpose of the Study:

  • To evaluate the predictive value of cochlear pneumolabyrinth on auditory outcomes after otic capsule trauma.
  • To emphasize the role of early computed tomography (CT) in patient management.

Main Methods:

  • Retrospective review of patients with otic capsule trauma.
  • Radiographic analysis of CT scans to identify cochlear pneumolabyrinth.
  • Correlation of imaging findings with audiological and clinical outcomes.

Main Results:

  • Cochlear pneumolabyrinth is a strong predictor of irreversible hearing loss.
  • While vestibular symptoms may improve, auditory recovery is consistently poor in the presence of cochlear air.
  • Early CT confirmation facilitates appropriate counseling and management planning.

Conclusions:

  • Cochlear pneumolabyrinth on CT is a critical marker for irreversible hearing loss post-otic capsule trauma.
  • Timely CT evaluation is essential for guiding hearing rehabilitation and cochlear implantation decisions.
  • Radiographic evidence of cochlear air influences the approach to managing hearing loss, even without surgical indications.