SEM of epithelial cells in the oesophagus

SEM of epithelial cells in the oesophagus

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Caption: Oesophagus epithelium. Coloured scanning electron micrograph (SEM) of the epithelium (lining) of the oesophagus. The roughly rectangular epithelial cells have a highly folded surface. These tiny folds are called microplicae (orange). The flattened cells form a stratified squamous epithelium many layers thick. As a muscular non- absorptive tube, the oesophagus transports swallowed food to the stomach. The microplicae keep the oesophagus moist, trap mucus to lubricate passing food and protect the epithelium from food abrasion. Magnification unknown.

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Keywords: anatomy, digestion, digestive system, epithelium, esophagus, gut, human body, microplicae, mucosa, oeso, oesophagus, squamous epithelial cell

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