- 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.
What are the phases of swallowing?
Anatomically, swallowing has been divided into three phases:
oral, pharyngeal, and esophageal
.
What are the 4 stages of swallowing quizlet?
- Oral preparatory phase. Mastication. Food prepared for swallowing. …
- Oral phase. Propulsion of bolus. Bolus pushed back toward oropharynx by tongue in front to back squeezing motion. …
- Pharyngeal phase. Pharyngeal swallow. Begins when bolus reaches faucial pillars. …
- Esophageal phase.
What are the 4 phases of normal swallowing?
They have two crucial biological features: food passage from the oral cavity into stomach and protecting material from entering the airway. Normal swallowing can be divided into four stages,
the oral preparatory stage, the oral stage, pharyngeal stage and esophageal stage
.
What is the first phase of swallowing?
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).
Is the oropharynx the throat?
The
part of the throat at the back of the mouth behind the oral cavity
. It includes the back third of the tongue, the soft palate, the side and back walls of the throat, and the tonsils.
What is the function of the esophagus?
Esophagus. Located in your throat near your trachea (windpipe), the esophagus
receives food from your mouth when you swallow
. The epiglottis is a small flap that folds over your windpipe as you swallow to prevent you from choking (when food goes into your windpipe).
What are the 3 stages of deglutition?
Deglutition is divided into three phases:
oropharyngeal, esophageal, and gastroesophageal
. The oropharyngeal phase is controlled by the trigeminal (CN V), facial (CN VII), glossopharyngeal (CN IX), vagus (CN X), and hypoglossal nerves (CN XII).
What are the 3 phases of swallowing and describe how they are regulated?
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.
What is the esophageal phase of swallowing?
In the esophageal phase,
the bolus is propelled downward by a peristaltic movement
. The lower esophageal sphincter relaxes at initiation of the swallow, and this relaxation persists until the food bolus has been propelled into the stomach.
What are the stages of dysphagia?
- Oral preparatory phase. During this phase, you chew your food to a size, shape, and consistency that can be swallowed. …
- Pharyngeal phase. Here, the muscles of your pharynx contract in sequence. …
- Esophageal phase. The muscles in your esophagus contract in sequence to move the bolus toward your stomach.
What are the signs of swallowing difficulties?
- coughing or choking when eating or drinking.
- bringing food back up, sometimes through the nose.
- a sensation that food is stuck in your throat or chest.
- persistent drooling of saliva.
- being unable to chew food properly.
- a gurgly, wet-sounding voice when eating or drinking.
How many stages of swallowing are there in dysphagia?
A swallowing disorder is also called dysphagia (dis-FAY-juh). Swallowing happens in
three stages
, or phases. You can have a problem in one or more of these phases.
During which stage of swallowing is respiration inhibited?
Once food enters the pharynx, the
second stage
of swallowing begins. Respiration is temporarily inhibited as the larynx, or voice box, rises to close the glottis (the opening to the air passage).
What comes first the pharynx or esophagus?
The pharynx, or throat, is the passageway leading from the mouth and nose to
the esophagus
and larynx. The pharynx permits the passage of swallowed solids and liquids into the esophagus, or gullet, and conducts air to and from the trachea, or windpipe, during respiration.
What is meant by deglutition?
Deglutition:
The act of swallowing, particularly of swallowing food
. The muscles of deglutition are the muscles employed in the act of swallowing.
