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Related Concept Videos

The Auditory Ossicles01:11

The Auditory Ossicles

3.8K
The auditory ossicles of the middle ear transmit sounds from the air as vibrations to the fluid-filled cochlea. The auditory ossicles consist of two malleus (hammer) bones, two incus (anvil) bones, and two stapes (stirrups), one on each side. These bones develop during the fetal stage and are the ones to ossify first. They are fully mature at birth and do not grow afterward.
The aptly named stapes look very much like a stirrup. The three ossicles are unique to mammals, and each plays a role in...
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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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Hearing01:31

Hearing

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When we hear a sound, our nervous system is detecting sound waves—pressure waves of mechanical energy traveling through a medium. The frequency of the wave is perceived as pitch, while the amplitude is perceived as loudness.
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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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[Malignant tumour from a ceruminous adenoma in the ear canal].

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Related Experiment Video

Updated: Apr 22, 2026

Sound Source Localization Testing in Single-sided Deafness Following Bone Conduction Intervention
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Sound Source Localization Testing in Single-sided Deafness Following Bone Conduction Intervention

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[The bone-anchored hearing aid].

Søren Foghsgaard1

  • 1Øre-næse-hals-kirurgisk Afdeling, Rigshospitalet, Blegdamsvej 9, 2100 København Ø.

Ugeskrift for Laeger
|October 9, 2014
PubMed
Summary
This summary is machine-generated.

Bone-anchored hearing aids (Baha) bypass the middle ear for direct bone conduction to the inner ear. Clinical use exceeding 30 years shows good outcomes, improved audiology, and quality of life with high success rates.

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Area of Science:

  • Otorhinolaryngology
  • Biomedical Engineering
  • Audiology

Context:

  • Bone-anchored hearing aids (Baha) have been clinically available for over three decades.
  • The technology facilitates direct bone conduction to the inner ear, bypassing the middle ear.
  • Osseointegrated implants and skin-penetrating abutments are key components of the Baha system.

Purpose:

  • To review the clinical outcomes and efficacy of bone-anchored hearing aids.
  • To describe the audiological and quality of life improvements associated with Baha use.
  • To assess the success rates and complication profiles of Baha over its clinical history.

Summary:

  • Introduced in 1977, Baha technology offers an alternative for hearing loss by transmitting sound vibrations directly to the inner ear via the mastoid bone.
  • Studies consistently demonstrate significant improvements in audiological function and patient-reported quality of life.
  • The Baha system utilizes an osseointegrated implant and abutment, achieving high success rates with generally minor complications.

Impact:

  • Baha provides a viable and effective solution for individuals with conductive, mixed, or sensorineural hearing loss.
  • The long-term clinical data supports the Baha as a reliable audiological intervention.
  • Continued research and development in Baha technology promise further advancements in hearing restoration.