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Anatomy of the Ear

Anatomy of the Ear

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...

The Cochlea

The Cochlea

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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Related Experiment Video

Updated: May 4, 2026

Author Spotlight: Advancements in Impedance Monitoring for Cochlear Implant Surgery

Author Spotlight: Advancements in Impedance Monitoring for Cochlear Implant Surgery

Published on: August 4, 2023

Cochlear implant placement: round window approach.

Douglas D Backous¹

¹Swedish Neuroscience Institute, Neurosurgery, Seattle, Washington.

Neurosurgical Focus

|January 2, 2014

Summary

This summary is machine-generated.

Cochlear implantation techniques are advancing to include patients with more residual hearing. This video showcases a hearing preservation surgical approach for cochlear implants, incorporating the latest surgical innovations.

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Last Updated: May 4, 2026

Author Spotlight: Advancements in Impedance Monitoring for Cochlear Implant Surgery

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Published on: August 4, 2023

Performing Intracochlear Electrocochleography During Cochlear Implantation

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Published on: March 8, 2022

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Published on: June 16, 2022

Area of Science:

Otolaryngology
Neurosurgery
Biomedical Engineering

Background:

Cochlear implant indications are expanding to include patients with greater residual hearing.
Clinical trials are exploring cochlear implants for single-sided deafness and tinnitus.
Technological advancements in cochlear implant devices and programming are ongoing.

Observation:

This video demonstrates a round window cochlear implantation approach.
The surgical technique emphasizes hearing preservation.
It incorporates recent surgical advancements.

Findings:

The presented technique facilitates cochlear implant placement in patients with significant residual hearing.
The round window approach is detailed for optimal outcomes.
Hearing preservation is a key aspect of the surgical methodology.

Implications:

This approach may broaden the eligibility criteria for cochlear implantation.
It offers a potential solution for patients with single-sided deafness and tinnitus.
Advances in surgical techniques enhance the efficacy of cochlear implant technology.