Patient was educated on process of swallowing as follows:

1. During the process of swallowing, food is pushed to the back of the mouth by compressing the tongue against the roof of the mouth.
2. Once the food is in the back of mouth, the soft palate closes the airway to prevent entry of food particles into the airway.
3. The sphincter at the upper end of esophagus relaxes and allows the food to enter the esophagus.
4. The esophageal muscle then contracts, pushing the food down towards the stomach.
5. The phase of swallowing process, until the food reaches the back of the mouth, is the oropharyngeal phase and is under voluntary control.
6. The later phase of swallowing process, involving the soft palate closing the airway and the upper esophageal sphincter relaxation, is largely a reflex action and is the esophageal phase of swallowing.