A synonym for swallowing is:

Question

BlackTom AI · Accepted Answer

Deglutition refers to the act of swallowing — the coordinated sequence of events that moves a bolus of food or liquid from the mouth through the pharynx and into the esophagus.

Relevant knowledge points:
- Medical terminology often uses specific Latin/Greek roots. "Deglutition" comes from Latin deglutire, meaning to swallow.
- Swallowing has three physiological phases: oral (voluntary propulsion of the bolus), pharyngeal (automatic closure of the airway and passage of the bolus through the pharynx), and esophageal (peristaltic transport into the stomach).
- The other listed terms refer to different processes: emesis = vomiting; mastication = chewing; regurgitation = passive return of stomach contents; reflux = backflow, typically of gastric contents into the esophagus.

Step-by-step reasoning:
1. Read each option and recall its precise medical meaning.
2. Match meanings to the action "swallowing."
   - emesis: defined as the forceful expulsion of stomach contents through the mouth — this is vomiting, which is the opposite of swallowing.
   - deglutition: defined as swallowing — directly matches.
   - mastication: defined as the mechanical breakdown of food by chewing — a preparatory step before swallowing, not swallowing itself.
   - regurgitation: defined as passive return of contents up the esophagus into the mouth without the forceful abdominal contractions of vomiting — not swallowing.
   - reflux: defined as backward flow (e.g., gastroesophageal reflux) — again, opposite direction to swallowing.
3. Eliminate all options that do not denote the act of moving material from the mouth into the esophagus.

Why the correct answer is correct:
Deglutition is the standard anatomical and medical term for swallowing and encompasses the three-phase process that safely directs food and liquid into the digestive tract while protecting the airway.

Why other options are incorrect (brief):
- Emesis = vomiting, expulsion, not swallowing.
- Mastication = chewing, preparatory to swallowing but not the swallowing act.
- Regurgitation = passive return of swallowed material, not initial swallowing.
- Reflux = backward flow of gastric contents, opposite of swallowing direction.

Conclusion:
The correct answer is deglutition, which matches the provided answer.

A synonym for swallowing is:单项选择题

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