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Related Concept Videos

Taste Buds and Receptors01:20

Taste Buds and Receptors

5.5K
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,...
5.5K
Gustation01:43

Gustation

52.8K
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.
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The Physiology of Taste01:24

The Physiology of Taste

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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...
8.0K
The Tongue and Taste Buds00:49

The Tongue and Taste Buds

41.4K
The surface of the tongue is covered with various small bumps called papillae, which either distribute what has been ingested (filiform papillae) or contain the sensory taste (or gustatory) receptor cells (fungiform, circumvallate, and foliate papillae). Embedded within each taste-related papilla are the taste buds—clusters of 30 to 100 gustatory receptor cells.
41.4K
Tactile and Chemical Senses01:27

Tactile and Chemical Senses

1.1K
Tactile senses encompass touch, temperature, and pain, each mediated by specific receptors. Touch receptors detect mechanical energy or pressure against the skin. Sensory fibers from these receptors enter the spinal cord and relay information to the brain stem. Here, most fibers cross over to the opposite side of the brain. The touch information then moves to the thalamus, which projects a map of the body's surface onto the somatosensory areas of the parietal lobes in the cerebral cortex.
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Synaptic Signaling01:09

Synaptic Signaling

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Neurons communicate at synapses, or junctions, to excite or inhibit the activity of other neurons or target cells, such as muscles. Synapses may be chemical or electrical.
Most synapses are chemical, meaning an electrical impulse or action potential spurs the release of chemical messengers called neurotransmitters. The neuron sending the signal is called the presynaptic neuron, and the neuron receiving the signal is the postsynaptic neuron.
The presynaptic neuron fires an action potential that...
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Related Experiment Video

Updated: Feb 27, 2026

Whole-Mount Staining, Visualization, and Analysis of Fungiform, Circumvallate, and Palate Taste Buds
07:40

Whole-Mount Staining, Visualization, and Analysis of Fungiform, Circumvallate, and Palate Taste Buds

Published on: February 11, 2021

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Taste buds: cells, signals and synapses.

Stephen D Roper1,2, Nirupa Chaudhari1,2

  • 1Department of Physiology and Biophysics, Miller School of Medicine.

Nature Reviews. Neuroscience
|June 29, 2017
PubMed
Summary

Recent taste research advances our understanding of taste receptors and cellular detection mechanisms. New findings clarify taste processing, transmitters, and taste coding, refining taste bud and sensory fiber connections.

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Taste Exam: A Brief and Validated Test
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Related Experiment Videos

Last Updated: Feb 27, 2026

Whole-Mount Staining, Visualization, and Analysis of Fungiform, Circumvallate, and Palate Taste Buds
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Published on: February 11, 2021

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Taste Exam: A Brief and Validated Test
07:10

Taste Exam: A Brief and Validated Test

Published on: August 17, 2018

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New Methods to Study Gustatory Coding
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New Methods to Study Gustatory Coding

Published on: June 29, 2017

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Area of Science:

  • Neuroscience
  • Sensory Biology
  • Molecular Biology

Background:

  • Taste research has significantly advanced over the past decade.
  • Understanding taste perception involves complex biological pathways.

Purpose of the Study:

  • To review recent progress in taste research.
  • To highlight new findings on taste receptors, cellular mechanisms, and taste coding.

Main Methods:

  • Literature review of recent studies in taste research.
  • Synthesis of new data on taste receptors and cellular detection.
  • Analysis of findings on taste processing and coding.

Main Results:

  • Consolidation and refinement of knowledge on taste receptors and taste buds.
  • New insights into cellular mechanisms for detecting different tastes.
  • Updated understanding of neurotransmitters in taste processing.
  • Resolution of longstanding debates regarding taste coding.

Conclusions:

  • Significant progress has been made in understanding the biological basis of taste.
  • Current research provides a more refined view of taste perception and coding.