MRCP UK EXAMINATIONS

Detailed explanation-1: -The swallowing process is commonly divided into oral, pharyngeal, and esophageal stages according to the location of the bolus.

Detailed explanation-2: -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.

Detailed explanation-3: -The oral phase includes preparatory as well as early transfer phases. The oral preparatory phase includes suckling, chewing, and masticating; the mixing of the food with saliva; and the formation of a bolus of suitable size and consistency.

Detailed explanation-4: -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. esophageal.