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Related Concept Videos

Hearing01:31

Hearing

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.
Perception of Sound Waves01:01

Perception of Sound Waves

The human ear is not equally sensitive to all frequencies in the audible range. It may perceive sound waves with the same pressure but different frequencies as having different loudness. Moreover, the perception of sound waves depends on the health of an individual's ears, which decays with age. The health of one's ears may also be affected by regular exposure to loud noises.
The pitch of a sound depends on the frequency and the pressure amplitude of the source. Two sounds of the same frequency...
Unrenewable Cells00:50

Unrenewable Cells

In humans, the photoreceptor cells of the eye and sensory hair cells of the ear lack stem cells. These cells are thus unrenewable and cannot be replaced when they are damaged or destroyed.
Photoreceptors
The retina is composed of several layers and contains specialized cells called photoreceptors. The photoreceptors (rods and cones) change their membrane potential when stimulated by light energy. There are two types of photoreceptors—rods and cones—which differ in the shape of their outer...
Sound Intensity Level00:53

Sound Intensity Level

Humans perceive sound by hearing. The human ear helps sound waves reach the brain, which then interprets the waves and creates the perception of hearing. The loudness of the environment in which a person is located determines whether they can distinguish between different sound sources.
The human ear can perceive an extensive range of sound intensity, necessitating the use of the logarithmic scale to define a physical quantity—the intensity level. It is a ratio of two intensities and hence a...
Auditory Pathway01:15

Auditory Pathway

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 the...
The Cochlea01:13

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: Jun 9, 2026

Modified Experimental Conditions for Noise-Induced Hearing Loss in Mice and Assessment of Hearing Function and Outer Hair Cell Damage
07:13

Modified Experimental Conditions for Noise-Induced Hearing Loss in Mice and Assessment of Hearing Function and Outer Hair Cell Damage

Published on: February 10, 2023

Hearing loss.

Brandon Isaacson1

  • 1Department of Otolaryngology - Head and Neck Surgery, UT - Southwestern Medical Center, 5323 Harry Hines Boulevard, Dallas, TX 75390-9035, USA. brandon.isaacson@utsouthwestern.edu

The Medical Clinics of North America
|August 26, 2010
PubMed
Summary
This summary is machine-generated.

Hearing loss affects 10% of adults, increasing with age. Diagnosis involves history, exam, and tests like audiometry, with treatments including hearing aids and surgery.

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Cryosectioning and Immunostaining Mouse Inner Ear Tissue: From Embryonic to Adult Stages

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Related Experiment Videos

Last Updated: Jun 9, 2026

Modified Experimental Conditions for Noise-Induced Hearing Loss in Mice and Assessment of Hearing Function and Outer Hair Cell Damage
07:13

Modified Experimental Conditions for Noise-Induced Hearing Loss in Mice and Assessment of Hearing Function and Outer Hair Cell Damage

Published on: February 10, 2023

Neuro-rehabilitation Approach for Sudden Sensorineural Hearing Loss
09:44

Neuro-rehabilitation Approach for Sudden Sensorineural Hearing Loss

Published on: January 25, 2016

Cryosectioning and Immunostaining Mouse Inner Ear Tissue: From Embryonic to Adult Stages
09:09

Cryosectioning and Immunostaining Mouse Inner Ear Tissue: From Embryonic to Adult Stages

Published on: April 11, 2025

Area of Science:

  • Audiology
  • Otolaryngology
  • Geriatrics

Background:

  • Hearing loss is a prevalent sensory impairment, impacting approximately 10% of adults.
  • Prevalence significantly rises with increasing age, making it a common geriatric condition.
  • A broad range of conditions can cause hearing loss, necessitating a systematic diagnostic approach.

Purpose of the Study:

  • To outline the diagnostic process for hearing loss.
  • To discuss potential therapeutic interventions for various types and severities of hearing loss.

Main Methods:

  • A comprehensive hearing history and physical examination are crucial initial steps.
  • Diagnostic studies, including audiometry, are employed based on hearing loss severity.
  • Imaging may be considered in specific clinical scenarios.

Main Results:

  • A targeted history and physical exam can effectively narrow the differential diagnosis.
  • Audiometry and imaging aid in characterizing the type and severity of hearing loss.
  • Treatment options are tailored to the individual's specific condition.

Conclusions:

  • Early and accurate diagnosis of hearing loss is achievable through a structured approach.
  • A range of effective management strategies exist, from hearing aids to surgical interventions.
  • Addressing hearing loss can significantly improve quality of life for affected individuals.