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Related Concept Videos

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...
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,...
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.
Physiology of Smell and Olfactory Pathway01:20

Physiology of Smell and Olfactory Pathway

Humans detect odors with the help of specialized cells located in the upper part of the nasal cavity, called olfactory receptor neurons (ORNs). ORNs possess hair-like structures called cilia, which are receptive to sensations from the inhaled air. When an odorant molecule binds to a specific receptor on the cell of the cilia, it leads to a series of events that ultimately cause the ORN to send electrical signals to the olfactory bulb in the brain through the olfactory nerves.
The olfactory...
G-Protein Gated Ion Channels01:21

G-Protein Gated Ion Channels

GPCRs are primarily responsible for our sense of smell, taste, and vision.  The binding of a sensory stimulus activates GPCR to stimulate effector proteins, many of which are ion channels in the sensory organs. GPCRs modulate the opening and closing of the target ion channels either directly by binding them, or by releasing second messengers that activate these channels. As ions move across the membrane, the membrane potential is altered, which induces an appropriate response.
Sensory organs,...
The Tongue and Taste Buds00:49

The Tongue and Taste Buds

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.

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Related Experiment Video

Updated: Jun 21, 2026

New Methods to Study Gustatory Coding
10:59

New Methods to Study Gustatory Coding

Published on: June 29, 2017

Linking peripheral taste processes to behavior.

Alan C Spector1, John I Glendinning

  • 1Department of Psychology and Program in Neuroscience, Florida State University, Tallahassee, FL 32306, USA. spector@psy.fsu.edu

Current Opinion in Neurobiology
|August 14, 2009
PubMed
Summary
This summary is machine-generated.

Taste cells detect food chemicals, triggering brain circuits for food identification, appetite control, and digestion. This review explores recent advances in taste cell function and neural processing.

More Related Videos

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

Taste Exam: A Brief and Validated Test
07:10

Taste Exam: A Brief and Validated Test

Published on: August 17, 2018

Related Experiment Videos

Last Updated: Jun 21, 2026

New Methods to Study Gustatory Coding
10:59

New Methods to Study Gustatory Coding

Published on: June 29, 2017

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

Taste Exam: A Brief and Validated Test
07:10

Taste Exam: A Brief and Validated Test

Published on: August 17, 2018

Area of Science:

  • Neuroscience
  • Physiology
  • Sensory Biology

Background:

  • Eating and drinking involve complex interactions between food chemicals and taste cells.
  • Taste cell activation initiates neural circuits in the central nervous system.
  • These circuits are crucial for identifying food, regulating intake, and preparing for digestion.

Purpose of the Study:

  • To review recent advances in peripheral gustatory mechanisms.
  • To discuss these advances in the context of three major taste functions: stimulus identification, ingestive motivation, and digestive preparation.

Main Methods:

  • Primarily based on rodent models.
  • Focuses on peripheral gustatory mechanisms.
  • Literature review of recent scientific advancements.

Main Results:

  • Recent research has shed light on the intricate mechanisms of taste cell activation.
  • Understanding of neural pathways involved in taste perception has advanced.
  • New insights into how taste influences motivation and digestive processes have emerged.

Conclusions:

  • Peripheral gustatory mechanisms play a vital role in regulating food intake and digestion.
  • Continued research, particularly in rodent models, is essential for a comprehensive understanding of taste function.
  • Advances in gustatory research have significant implications for nutrition and metabolic health.