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Related Concept Videos

The Auditory Ossicles01:11

The Auditory Ossicles

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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...
4.1K
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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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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Hair Cells01:22

Hair Cells

46.9K
Hair cells are the sensory receptors of the auditory system—they transduce mechanical sound waves into electrical energy that the nervous system can understand. Hair cells are located in the organ of Corti within the cochlea of the inner ear, between the basilar and tectorial membranes. The actual sensory receptors are called inner hair cells. The outer hair cells serve other functions, such as sound amplification in the cochlea, and are not discussed in detail here.
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Updated: Apr 20, 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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[An update on bone anchored hearing aids].

S Fries, R Maire, P Grosjean

    Revue Medicale Suisse
    |November 25, 2014
    PubMed
    Summary
    This summary is machine-generated.

    Bone anchored hearing aids offer improved rehabilitation for conductive, mixed, and severe sensorineural hearing loss. New materials and implants reduce skin issues and aesthetic concerns for patients.

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    Systematic Hearing Performance Evaluation Process for Adolescents with Cochlear Implantation at Early Ages
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    Area of Science:

    • Audiology
    • Biomedical Engineering
    • Otolaryngology

    Context:

    • Hearing loss significantly impacts development and social interaction.
    • Traditional hearing aids are insufficient for severe deafness, causing sound distortion.
    • Bone anchored hearing aids (BAHA) represent an advancement in auditory rehabilitation.

    Purpose:

    • To review the expanded indications and benefits of bone anchored hearing aids.
    • To highlight advancements in materials and implant technology for BAHA.
    • To address the challenges of severe hearing loss and patient comfort.

    Summary:

    • Bone anchored hearing aids (BAHA) effectively rehabilitate conductive and mixed hearing losses.
    • Recent advancements have expanded BAHA indications to include severe to profound sensorineural hearing loss.
    • Innovations in materials and subcutaneous implants have minimized skin complications and improved aesthetic outcomes.

    Impact:

    • BAHA provides a viable solution for previously difficult-to-treat hearing impairments.
    • Technological improvements enhance patient comfort and reduce the 'hidden handicap' of hearing loss.
    • This technology broadens audiological treatment options, improving quality of life.