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Related Concept Videos

Physiology of the Gastrointestinal System I: Ingestion and Propulsion01:22

Physiology of the Gastrointestinal System I: Ingestion and Propulsion

The physiology of the gastrointestinal system begins with ingestion as food enters the mouth.
Oral Cavity01:11

Oral Cavity

The oral cavity, or the mouth, is a complex structure in humans that plays a vital role in our day-to-day lives. Its role is not only in chewing and swallowing food; it also plays a role in speech and facial expressions.
Teeth: The teeth are the hardest structures in our bodies. Humans have two sets of teeth throughout their lifetime: deciduous (baby) teeth and permanent teeth. Each tooth consists of several parts: the crown (visible part), the root (embedded in the jaw), enamel (hard outer...
Deglutition01:25

Deglutition

Swallowing, otherwise known as deglutition, facilitates the transport of food from the mouth to the stomach. It is a multifaceted process that involves both the tongue and the muscles of the throat and esophagus. Saliva and mucus aid in this process, which takes approximately 4 to 8 seconds for semi-solid or solid food and around 1 second for liquids or very soft food.
Swallowing can be divided into three stages: the voluntary phase, the pharyngeal phase, and the esophageal phase. Although the...
Tongue01:01

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...
Gastric Motility01:16

Gastric Motility

Gastric motility is the coordinated contraction and relaxation of stomach muscles that convert ingested food into chyme, a semi-liquid substance ready for further digestion in the intestines. The process begins with the vagus nerve inducing the relaxation of the smooth muscles in the fundus and body of the stomach, allowing these regions to expand and accommodate up to approximately 1.5 liters of food and liquid.
Peristaltic Waves and Chyme Formation
Upon food entry, the stomach initiates...
Salivary Glands and Saliva01:23

Salivary Glands and Saliva

The salivary glands, of which there are three pairs known as the parotid, submandibular, and sublingual glands, play a crucial role in maintaining oral health and initiating the digestive process. Positioned near the ears, beneath the masseter muscle, the parotid glands secrete saliva into the oral cavity through the parotid duct of Stensen. Meanwhile, the submandibular glands, located on the floor of the mouth, secrete saliva through channels named submandibular ducts. The sublingual glands,...

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Related Experiment Video

Updated: Jun 20, 2026

Adapting Human Videofluoroscopic Swallow Study Methods to Detect and Characterize Dysphagia in Murine Disease Models
08:32

Adapting Human Videofluoroscopic Swallow Study Methods to Detect and Characterize Dysphagia in Murine Disease Models

Published on: March 1, 2015

Mastication and swallowing: 1. Functions, performance and mechanisms.

Robert Orchardson1, Samuel W Cadden

  • 1University of Glasgow Dental School, Glasgow.

Dental Update
|September 12, 2009
PubMed
Summary

Mastication, the process of chewing, is crucial for food processing and nutrition. Understanding tooth loss effects on chewing performance is vital for dental health and patient well-being.

Area of Science:

  • Oral physiology
  • Dental science
  • Nutritional science

Background:

  • Mastication involves complex coordination of tongue, lips, cheeks, teeth, and jaws.
  • Recent research has advanced understanding of human masticatory-jaw and swallowing coordination.
  • This paper reviews mastication's role in food processing, nutrition, and the impact of tooth loss.

Purpose of the Study:

  • To review the role of mastication in food processing and nutrition.
  • To examine the effect of tooth loss on masticatory performance.
  • To discuss new information on masticatory and swallowing functions in humans eating naturally.

Main Methods:

  • Literature review of mastication and swallowing functions.
  • Analysis of the relationship between dentition and digestive processes.

More Related Videos

Coordinate Mapping of Hyolaryngeal Mechanics in Swallowing
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Coordinate Mapping of Hyolaryngeal Mechanics in Swallowing

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In Vivo Evaluation of the Mechanical and Viscoelastic Properties of the Rat Tongue
06:59

In Vivo Evaluation of the Mechanical and Viscoelastic Properties of the Rat Tongue

Published on: July 6, 2017

Related Experiment Videos

Last Updated: Jun 20, 2026

Adapting Human Videofluoroscopic Swallow Study Methods to Detect and Characterize Dysphagia in Murine Disease Models
08:32

Adapting Human Videofluoroscopic Swallow Study Methods to Detect and Characterize Dysphagia in Murine Disease Models

Published on: March 1, 2015

Coordinate Mapping of Hyolaryngeal Mechanics in Swallowing
14:13

Coordinate Mapping of Hyolaryngeal Mechanics in Swallowing

Published on: May 6, 2014

In Vivo Evaluation of the Mechanical and Viscoelastic Properties of the Rat Tongue
06:59

In Vivo Evaluation of the Mechanical and Viscoelastic Properties of the Rat Tongue

Published on: July 6, 2017

  • Consideration of clinical dentistry implications for tooth replacement.
  • Main Results:

    • Adequate dentition is relevant to the digestive process.
    • Tooth loss significantly impacts masticatory performance.
    • New information highlights natural human masticatory and swallowing functions.

    Conclusions:

    • Dentists must understand mastication for optimal patient health.
    • Knowledge of mastication informs clinical management of impaired systems.
    • An adequate dentition supports general health and well-being.