Simple columnar epithelium

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an image of the inside of a cell phone showing what it looks like in pink and purple

Simple columnar epithelium is made up of a single layer of tall cells whose nuclei are all in the same spot. It is found lining most organs of the digestive track because they can take more wear and tear since they are bigger. Their job is to take in nutrients from food running through the digestive system.

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an image of the inside of a human stomach

This tissue provides even more of a barrier because each epithelial cell has a longer length than width, thus making them column shaped (columnar). It lines the small intestine when it is not ciliated but has microvilli are found in the small intestine where they secrete digestive enzymes and absorb digested food. When they are ciliated they have cilia which aid in the movement of mucous and reproductive cells.

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the structure of an animal's stomach is shown in this hand - drawn diagram

Pseudostratified epithelium is also sometimes referred to as respiratory epithelium, since ciliated pseudostratified columnar epithelia is mainly found in the larger respiratory airways of the nasal cavity, trachea and bronchi.

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