The alternating contractions of these muscles causes the bolus to move from the pharynx into the food pipe or esophagus. The pharynx also houses the tonsils and adenoids. The pharynx plays an important role in our bodies. It plays a role in both the respiratory as well as the digestive system. The pharynx is a common passage Probiotics for air and food, which is why pharynx has dual role. The pharynx opens into two path Probiotics s, one that leads to the esophagus or food passage and the other trachea or air passage. It is in the pharynx that the second phase of swallowing takes place. The moistened food bolus is moved to the back of the mouth by the tongue and pushed into the pharynx. Here muscle contractions (circular muscle constrictions) take place and the swallowing reflex is triggered. Part of the swallowing action takes place as a reflex action, while part of it is under voluntary control.

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