There are 4 phases of swallowing:
- The Pre-oral Phase. – Starts with the anticipation of food being introduced into the mouth – Salivation is triggered by the sight and smell of food (as well as hunger)
- The Oral Phase. ...
- The Pharyngeal Phase. ...
- The Oesophageal Phase.
Terms in this set (8)
- stage 1. oral preparatory.
- stage 2. oral (buccal)
- stage 3. pharyngeal.
- stage 4. esophageal.
- oral preparatory. the act of taking food, chewing it, mixing it with saliva, and forming it into a bolus. ...
- oral. controlling the bolus and transporting it to the back of the mouth. ...
- pharyngeal. ...
The pharyngeal phase is of particular importance, because without intact laryngeal protective mechanisms, aspiration (the passage of food or liquid through the vocal folds) is most likely to occur during this phase. This phase involves a rapid sequence of overlapping events.
Swallowing is divided into three stages: Oral phase – voluntary, movement of the bolus from the oral cavity into the oropharynx. Pharyngeal phase – involuntary, movement of the bolus from the oropharynx into the esophagus. Esophageal phase – involuntary, movement of the bolus through the esophagus and into the stomach.
The first irreversible step in swallowing, the pharyngeal stage , occurs next and is categorized by a rapid phase of muscle contraction to propel the bolus through the upper esophageal sphincter and into the esophagus. This stage starts when the consumed bolus makes its way to the palatoglossal arch.
Terms in this set (4)
- oral prep stage (mastication) food is prepared for swallowing. food is kept in mouth by sealed lips. ...
- oral transit stage. chewing stops. ...
- pharyngeal stage. begins when bolus reaches anterior faucial pillars. ...
- esophageal stage. the esophageal stage is the final stage of degluttion (swallowing).
broadly categorized into 4 stages:
- ( oral) preparatory stage.
- oral stage.
- pharyngeal stage.
- esophageal stage.
Swallowing is divided into three stages:
- Oral phase – voluntary, movement of the bolus from the oral cavity into the oropharynx.
- Pharyngeal phase – involuntary, movement of the bolus from the oropharynx into the esophagus.
- Esophageal phase – involuntary, movement of the bolus through the esophagus and into the stomach.
5 With obstruction of the pharynx by a stricture, web or tumor, weakness or incoordination of the pharyngeal muscles, or poor opening of the upper esophageal spincter,8 patients may retain excessive amounts of food in the pharynx and experience overflow aspiration after swallowing.
During which stage of swallowing is there a risk of food entering respiratory pathways and how is this risk blocked?
A critical part of the pharyngeal phase is the involuntary closure of the larynx by the epiglottis and vocal cords, and the temporary inhibition of breathing. These actions prevent food from going “down the wrong pipe” into the trachea (windpipe).
Aspiration before the swallow is commonly caused by either premature entry of liquids into the pharynx (due to impaired containment in the oral cavity) or by delayed onset of laryngeal closure after a bolus is propelled into the pharynx.
Swallowing starts with the oral phase . This phase begins when food is placed in the mouth and moistened with saliva. Moistened food is called a food bolus. The food bolus is voluntarily chewed with the teeth that are controlled by the muscles of mastication (chewing
The swallowing process is commonly divided into oral, pharyngeal, and esophageal stages according to the location of the bolus. The movement of the food in the oral cavity and to the oropharynx differs between eating solid food and drinking liquid.
swallowing, also called Deglutition, the act of passing food from the mouth, by way of the pharynx (or throat) and esophagus, to the stomach. Three stages are involved in swallowing food. The first begins in the mouth . There, food is mixed with saliva for lubrication and placed on the back of the tongue.