Oral Stage/Phase - under voluntary control
Begins when we stop chewing and the tongue tip elevates to touch the alveolar ridge. The food is on top of the tongue, the tongue quickly sweeps back, pulling the food to the back of the mouth and toward the pharynx. The soft palate moves up to make contact with the posterior pharyngeal wall to prevent food from accidently entering the nasal passage. TAKES 1 SECOND.