Dictionary > Deglutition

Deglutition

Definition
noun
(physiology) The act or process of taking (food or drink) to the mouth and then conveying it through the esophagus (toward the stomach) by means of a succession of muscular contractions
Supplement
Deglutition is the scientific term for the process of swallowing any food stuff into the body, particularly passing from the mouth, to the pharynx, and down through the esophagus. The food stuff ingested and swallowed is called a bolus.
There are three stages of deglutition. The first stage is the voluntary closure of lips and tooth approximation. The second stage is the involuntary peristalsis so that the bolus would be propelled down the esophagus. At this stage, the nasal passage and pharyngeal airway are shut. The third stage is the passing of the bolus along the length of the esophagus and then into the stomach, again, through involuntary peristalsis. 1
Word origin: Latin dēglūtīt , from – + glūtī (re) (to swallow) + -ion
Synonym(s):

  • swallowing

See also:

  • demarquays symptom
  • pharyngeal constrictor
  • swallowing threshold
  • Related term(s):

    • deglutitive (adjective)
    • deglutition reflex
    • deglutition syncope

    Mentioned in:

  • middle pharyngeal constrictor
  • Reference(s):

    1Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc.


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