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Related Concept Videos

Taste Buds and Receptors01:20

Taste Buds and Receptors

Gustation, or the sense of taste, is intrinsically linked to the anatomical structures located on the tongue. This organ's surface, along with the entirety of the oral cavity, is adorned with stratified squamous epithelium. Evident on the tongue are elevated structures known as papillae (singular = papilla), which house the mechanisms for the transduction of gustatory stimuli. Four distinct types of papillae exist, each identified by their unique morphological attributes: the circumvallate,...
The Physiology of Taste01:24

The Physiology of Taste

The perception of a salty flavor is facilitated by sodium ions within the oral salivary fluid. Upon consumption of a salty substance, salt crystals disassemble, leading to the liberation of its constituents—Na+ and Cl- ions. These ions subsequently dissolve into the salivary fluid present in the oral cavity. The external environment of the gustatory cells experiences an elevation in Na+ concentration, thereby establishing a potent concentration gradient. This gradient propels the diffusion of...
Gustation01:43

Gustation

Gustation is a chemical sense that, along with olfaction (smell), contributes to our perception of taste. It starts with the activation of receptors by chemical compounds (tastants) dissolved in the saliva. The saliva and filiform papillae on the tongue distribute the tastants and increase their exposure to the taste receptors.
Olfactory Receptors: Location and Structure01:03

Olfactory Receptors: Location and Structure

The process of olfaction, also known as the sense of smell, is a sophisticated chemical response system. The specialized sensory neurons that facilitate this process, known as olfactory receptor neurons, are situated in an upper segment of the nasal cavity, known as the olfactory epithelium. Olfactory sensory neurons are bipolar, with their dendrites extending from the epithelium's apex into the mucus that lines the nasal cavity. Airborne molecules, when inhaled, traverse the olfactory...

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Related Experiment Video

Updated: Jul 12, 2026

Performing Intracochlear Electrocochleography During Cochlear Implantation
09:10

Performing Intracochlear Electrocochleography During Cochlear Implantation

Published on: March 8, 2022

Effects of cochlear implantation on gustatory function.

Christian A Mueller1, Saher Khatib, Andreas F P Temmel

  • 1Department of Otorhinolaryngology, Medical University Vienna, General Hospital Vienna, Vienna, Austria.

The Annals of Otology, Rhinology, and Laryngology
|August 31, 2007
PubMed
Summary

Cochlear implantation surgery is generally safe for taste function, with minimal subjective impact. Objective taste sensitivity may slightly decrease on the operated side, but overall gustatory function remains largely unaffected.

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Performing Repeated Intraoperative Impedance Telemetry Measurements during Cochlear Implantation
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Last Updated: Jul 12, 2026

Performing Intracochlear Electrocochleography During Cochlear Implantation
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Published on: March 8, 2022

Performing Repeated Intraoperative Impedance Telemetry Measurements during Cochlear Implantation
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Performing Repeated Intraoperative Impedance Telemetry Measurements during Cochlear Implantation

Published on: August 4, 2023

Area of Science:

  • Otolaryngology
  • Neurosurgery
  • Sensory Science

Background:

  • The chorda tympani nerve's proximity to the cochlea poses a risk during cochlear implantation.
  • Assessing the impact of cochlear implantation on taste function is crucial for patient outcomes.

Purpose of the Study:

  • To evaluate changes in taste sensitivity after cochlear implantation.
  • To assess self-reported gustatory function following the surgical procedure.

Main Methods:

  • Quantitative taste testing (sweet, sour, salty, bitter) on both sides of the tongue.
  • 24 patients undergoing cochlear implantation were tested pre-surgery and 4 days post-surgery.

Main Results:

  • A statistically significant decrease in objective taste scores on the tongue side ipsilateral to surgery (p=.004).
  • No significant change in taste scores on the contralateral side (p=.037).
  • No significant change in patients' self-rated gustatory function.

Conclusions:

  • Cochlear implantation appears to be a relatively safe procedure concerning taste function.
  • Preoperative gustatory function testing is advisable, especially for patients with prior contralateral ear surgery.