Swallowing Function
Swallowing Function - Related Videos
14:13
Coordinate Mapping of Hyolaryngeal Mechanics in Swallowing
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Cited by 34 •
2014
Coordinate mapping is a method of documenting salient features of hyolaryngeal biomechanics in the pharyngeal phase of swallowing. This methodology uses image analysis software to record coordinates of anatomical landmarks. These coordinates are imported into an excel macro and translated into kinematic variables of interest useful in dysphagia research.
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Adapting Human Videofluoroscopic Swallow Study Methods to Detect and Characterize Dysphagia in Murine Disease Models
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Cited by 53 •
2015
This study successfully adapted human videofluoroscopic swallowing study (VFSS) methods for use with murine disease models for the purpose of facilitating translational dysphagia research.
07:45
Minimally Invasive Murine Laryngoscopy for Close-Up Imaging of Laryngeal Motion During Breathing and Swallowing
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2023
This protocol describes a serial transoral laryngoscopy approach for mice and rats that permits close-up, unobstructed video imaging of the larynx during breathing and swallowing using an optimized anesthetic regimen and finely tuned endoscopic manipulation techniques.
01:24
Upper GI Series: Barium Swallow
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2025
The Barium Swallow Study, or a Barium Esophagogram, is a diagnostic imaging method used to visualize the upper gastrointestinal (GI) tract, including the esophagus, stomach, and small intestine. It employs barium sulfate, a radiopaque contrast material, to provide clear images of the upper digestive system, helping to identify abnormalities, diseases, or structural issues. Purpose and Procedure Patients undergoing this procedure ingest a liquid containing barium sulfate with a chalky...
02:45
Functional Groups
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2020
Functional groups are a group of atoms with characteristic properties, which when linked to the carbon skeleton of a molecule, alter the properties of that molecule. For example, the presence of certain functional groups on a molecule will make them hydrophilic, whereas others will make them hydrophobic. These functional groups are an indispensable part of organic chemistry and important components of biological molecules, such as carbohydrates, proteins, lipids, and nucleic acids. Each...
FAQs
Each phase contributes a different part of bolus transport. The oral phase uses the tongue and mouth to prepare and move material, the pharyngeal phase transfers it while coordinating airway protection, and the esophageal phase propels it toward the stomach. Their sequential timing allows swallowing to move food, liquid, or saliva efficiently without losing respiratory safety.
Sensory feedback helps detect the bolus and supports appropriate timing of the swallowing sequence, while neural control coordinates patterned activity across the tongue, pharyngeal muscles, larynx, and esophagus. This interaction allows the phases to occur in the correct order and adjusts movement to support effective transport and protection of the airway.
Brief airway closure separates swallowing from breathing during the pharyngeal phase. This protective action limits the chance that food or liquid will enter the airway while the bolus is being transported. When airway protection is inadequate, clinical concern increases because swallowing problems may threaten respiratory safety in addition to nutrition and hydration.
Clinical evaluation can help identify dysphagia, which is impaired swallowing, as well as the risk of aspiration, meaning entry of material into the airway. It may also support recognition of underlying neurological or structural disorders. These findings give clinicians a basis for determining the next steps in assessment and treatment planning.
Results from swallowing assessment can inform rehabilitation, dietary modifications, and broader treatment planning. For example, clinicians may use the identified swallowing problem and aspiration risk to determine whether changes in diet or targeted rehabilitation should be considered. The evaluation therefore connects physiological findings with practical strategies for supporting safer nutrition and hydration.
Swallowing depends on precisely coordinated movements and neural control, so disruption can reflect either neurological or structural disease. In medicine, assessing this function helps distinguish a swallowing-related problem from its possible underlying context and clarifies associated risks. That information supports more focused clinical decisions about rehabilitation, dietary management, and treatment planning.