Because the mucosa in the esophagus needs to be more abrasion-resistant,it is made of stratified epithelium while the rest of the mucosa is made of columnar epithelium.

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The mucosa in the esophagus needs to withstand the friction from food passing through, so it is composed of a more durable stratified epithelium, while the rest of the mucosa is typically made of a thinner columnar epithelium that allows for absorption and secretion.

Because the Mucosa in the Esophagus Needs to Be More