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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,...
Chickenpox01:20

Chickenpox

Chickenpox is an acute, highly contagious disease caused by the varicella-zoster virus (VZV), a double-stranded DNA virus belonging to the Herpesviridae family. Its transmission occurs primarily through the inhalation of respiratory droplets or direct contact with vesicular fluid from skin lesions. The incubation period typically ranges from 10 to 21 days, during which the virus replicates and disseminates through sequential phases within the host. Although generally self-limiting in children,...
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...
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.
Herpes01:28

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Herpes simplex type 1 (HSV‑1) is a widespread pathogen responsible for orolabial lesions. It is an enveloped, double-stranded DNA (dsDNA) virus belonging to the family Herpesviridae. Once the virus infects a host cell, its double‑stranded DNA genome is delivered into the nucleus, where a coordinated cascade of immediate‑early, early, and late gene expression directs viral DNA replication, structural protein synthesis, and virion assembly. After primary infection of epithelial cells, HSV-1...

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Related Experiment Video

Updated: Jun 8, 2026

New Methods to Study Gustatory Coding
10:59

New Methods to Study Gustatory Coding

Published on: June 29, 2017

Gustatory dysfunction after mandibular zoster.

Frédéric Heymans1, Jean-Silvain Lacroix, Andrej Terzic

  • 1Rhinology-Olfactology Unit, Department of Otolaryngology-Head and Neck Surgery, Geneva Neuroscience Center, University of Geneva Medical School, Rue Gabrielle-Perret-Gentil 4, 1211 Geneva, Switzerland.

Neurological Sciences : Official Journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology
|October 7, 2010
PubMed
Summary
This summary is machine-generated.

Mandibular nerve zoster, a rare condition affecting the trigeminal nerve, can cause taste dysfunction. Fortunately, taste function typically recovers within months, unlike persistent post-zoster neuralgia.

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Last Updated: Jun 8, 2026

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Meal Duration as a Measure of Orofacial Nociceptive Responses in Rodents
09:05

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Published on: January 10, 2014

Area of Science:

  • Neurology
  • Otolaryngology
  • Infectious Diseases

Background:

  • Varicella zoster virus (VZV) reactivation affecting the mandibular nerve (V3) is uncommon.
  • Known V3 zoster symptoms include pain, reduced sensation, and rash in the V3 dermatome.
  • The impact of mandibular nerve zoster on taste sensation remains poorly understood.

Observation:

  • Two patients with mandibular nerve zoster presented with subjective taste disturbances.
  • Objective gustatory testing revealed ipsilateral hemiageusia affecting the anterior two-thirds of the tongue in both cases.
  • Facial nerve involvement was not observed.

Findings:

  • Mandibular nerve zoster can lead to taste dysfunction, specifically hemiageusia.
  • Taste impairment resolved within two months in the reported cases.
  • Post-zoster neuralgia persisted for over a year, indicating a differential recovery timeline.

Implications:

  • Clinicians should consider gustatory dysfunction as a potential symptom of mandibular nerve zoster.
  • Early diagnosis and management of VZV affecting the trigeminal nerve are crucial.
  • The findings suggest that taste pathways may have a better capacity for recovery compared to pain pathways after VZV reactivation.