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The Tongue and Taste Buds

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.

Exocrine Glands: Types of Secretions

Exocrine Glands: Types of Secretions

Exocrine glands produce and release a variety of glandular products. Exocrine glands can be classified into serous, mucous, or mixed types based on their secretory products.
Serous glands produce watery secretions rich in digestive enzymes and proteins. The constituent cells of the serous gland have centrally located nuclei and eosinophilic secretory granules in the cytoplasm. The parotid gland is an example of a serous gland. It secretes saliva, which contains enzymes, such as lipases and...

Exocrine Glands: Methods of Secretion

Exocrine Glands: Methods of Secretion

Exocrine glands are those that release their secretions through ducts. Based on their mode of secretion, they can be classified into merocrine, apocrine, and holocrine.
Merocrine Secretion
Merocrine secretion is the most common type of exocrine secretion. The secretions are enclosed in vesicles and moved to the cell's apical surface, where the contents are released by exocytosis. For example, mucous, a watery secretion rich in the glycoprotein mucin, is a merocrine secretion. The eccrine...

Glycocalyx and its Functions

Glycocalyx and its Functions

The glycocalyx is a carbohydrate-rich, fuzzy-appearing layer on the outer surface of the cell membrane. It is highly hydrophilic, because of this it attracts large amounts of water to the cell's surface. This aids the cell's interaction with the watery environment and also helps it to obtain substances dissolved in the water. It is also important for cell identification, self/non-self determination, and embryonic development and is used in cell-to-cell attachments to form tissues.

Tongue

Tongue

The human tongue is a fascinating and complex organ, responsible for various essential functions such as swallowing, speech, and taste. It is also subject to various conditions and diseases. In this article, we delve into the anatomy of the tongue, its roles, and some common conditions that can affect it.
Anatomical Position in the Oral Cavity
The tongue is located within the oral cavity, also known as the mouth. It is attached to the floor of the mouth by a fold of mucous membrane called the...

Assessment of the Mouth

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A thorough mouth assessment, including inspection and palpation of the lips, gums, tongue, tonsils, uvula, and pharynx, is crucial in detecting potential health issues. Diseases ranging from oral cancer to systemic conditions like diabetes could be identified early through careful oral examination. This article provides a detailed guide on conducting a comprehensive mouth assessment.
Mouth Inspection
The inspection begins with visually examining the mouth for symmetry, color, and size.

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Related Experiment Video

Updated: Nov 16, 2025

Visualization of HIV-1 Gag Binding to Giant Unilamellar Vesicle GUV Membranes

Visualization of HIV-1 Gag Binding to Giant Unilamellar Vesicle GUV Membranes

Published on: July 28, 2016

Gloss.

Amanda M Franklin¹, Laura Ospina-Rozo¹

¹School of BioSciences, The University of Melbourne, VIC, Australia.

Current Biology : CB

|February 23, 2021

Summary

This summary is machine-generated.

This study explores the biological and physical principles behind gloss in natural phenomena. Researchers Amanda M. Franklin and Laura Ospina-Rozo provide insights into this fascinating optical property.

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TiO2-coated Hollow Glass Microspheres with Superhydrophobic and High IR-reflective Properties Synthesized by a Soft-chemistry Method

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Ganglioside Extraction, Purification and Profiling

Ganglioside Extraction, Purification and Profiling

Published on: March 12, 2021

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Last Updated: Nov 16, 2025

Visualization of HIV-1 Gag Binding to Giant Unilamellar Vesicle GUV Membranes

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Published on: July 28, 2016

TiO2-coated Hollow Glass Microspheres with Superhydrophobic and High IR-reflective Properties Synthesized by a Soft-chemistry Method

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Published on: April 26, 2017

Ganglioside Extraction, Purification and Profiling

Ganglioside Extraction, Purification and Profiling

Published on: March 12, 2021

Area of Science:

Biology
Physics
Optics

Background:

Gloss is a visually apparent surface characteristic.
Understanding gloss is important in various scientific fields.

Purpose of the Study:

To introduce the fundamental biology and physics of gloss in natural settings.
To provide a foundational overview of gloss for researchers.

Main Methods:

Literature review
Conceptual synthesis

Main Results:

Gloss arises from the interaction of light with surface structures.
Biological surfaces have evolved diverse strategies to produce gloss.

Conclusions:

Gloss is a complex phenomenon with both physical and biological underpinnings.
Further research can explore specific examples of gloss in nature.