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• Otolaryngology - ENT
  • Common ENT Terms
  • Ear Related Terms
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  • Throat Conditions
  • Sample Reports - Otolaryngology - ENT

• Ear Related Terms

- H -

• H, M, L

An indication of the attenuation a hearing protector will provide in High, Medium and Low frequency biased noise environments.



• Hair Cells

Found in the organ of Corti in the cochlea of the inner ear, these are the specialized receptors of hearing. The name refers to stereocilia, bundles of hairlike projections jutting upward from the cells. When the stereocilia are moved by sound vibrations, the hair cells translate this mechanical stimulation into an electrical nerve impulse that is carried to the brain by the auditory nerve.



• Hammer

Receives vibration from eardrum, sends it to anvil, one of the smallest bones in the body.



• Head Conditions

Conditions that affect the head



• Hearing Aid

An electronic device that is designed to couple to the ear and to amplify and deliver sound to the ear. A basic hearing aid consists of a microphone, amplifier and receiver. Learn more



• Hearing Impairment

Reduced ability to hear sounds.



• Herpes Zoster Oticus

Facial and auditory effects of herpes zoster



• Hertz (Hz)

Refers to a periodic or cyclically occurring phenomenon such as a sound wave. Its frequency is the number of times it repeats in one second i.e., cycles per second. The unit of frequency is the Hertz (Hz) which corresponds to 1 cycle per second.



• Hyperacusis

A phenomenon where normal sounds are perceived to be abnormally loud, so much so that they are painful to listen to.