As we know, the pharynx is a passageway from the mouth to the esophagus and forms the initial part of the digestive system. Here, we will look at the histology of the different layers of the pharynx. 0:00 introduction 0:30 parts of pharynx 0:48 layers of pharynx 1:00 mucosa 1:24 submucosa 1:45 muscularis 1:57 adventitia