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Otolaryngology - Common ENT Terms

- H -

  • Hair Cells

  • The sensory cells of the inner ear, which are topped with hair-like structures, the stereocilia, and which transform the mechanical energy of sound waves into nerve impulses.

  • Haptic Sense

  • The sense of physical contact or touch.

  • Haptometer

  • An instrument for measuring sensitivity to touch.

  • Hearing

  • A series of events in which sound waves in the air are converted to electrical signals, which are sent as nerve impulses to the brain, where they are interpreted.

  • Hearing Aid

  • An electronic device that brings amplified sound to the ear. A hearing aid usually consists of a microphone, amplifier, and receiver.

  • Hearing Disorder

  • Disruption in the normal hearing process that may occur in the outer, middle or inner ear, whereby sound waves are not converted to electrical signals and nerve impulses are not transmitted to the brain to be interpreted.

  • Hereditary Hearing Impairment

  • Hearing loss passed down through generations of a family.

  • Hoarseness

  • An abnormally rough or harsh-sounding voice caused by vocal abuse and other disorders such as gastroesophageal reflux thyroid problems or trauma to the larynx (voice box). More

  • Hyoid

  • A bone in the neck suspended between muscles that help produce the swallowing motion.

  • Hyperplasia

  • Excessive growth of normal cells of an organ.

  • Hypogeusia

  • Diminished sensitivity to taste.

  • Hyposmia

  • Diminished sensitivity to smell.

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Common ENT Terms

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