The<unk>  phase is characterized by a series of violent spasmodic abdomino-thoracic contractions with the glottis closed. During this time, the inspiratory (inhalatory) movements of the chest wall and diaphragm are opposed by the expiratory contractions of the abdominal musculature. At the same time, movements of the stomach and its contents take place. Whereas a patient will complain of disagreeable sensations during nausea, speech is not possible during<unk> . The characteristic movements furnish a ready diagnostic sign of the<unk>  phase. Schindler (1937) studied<unk>  on two occasions during gastroscopy and noted that longitudinal folds appeared in the previously smooth antrum, thickened quickly, came together and completely closed the antrum.<unk>  involves a deep inspiration against a closed glottis. This, along with contraction of the abdomen, leads to a pressure difference between the abdominal and thoracic cavities. As a result, the stomach and gastric contents are displaced upwards toward the thoracic cavity.<unk>  comprises a rhythmically alternating (about once per second) elevation and descension of the entire apparatus in synchrony with the movement of the diaphragm. The function of<unk>  may be to mix gastric contents with intestinal refluxate to buffer gastric contents before gastroesophageal reflux and to impart a momentum to the gastric contents before vomiting. Airway protection during<unk>  is accomplished by glottal closure during retches and constriction of the upper esophageal sphincter between retches.
Retching
Stretching
Pruning
Gargling
Punding
Kindling 
Rejection of Jesus
Banding 