False-colour SEM of villi in jejunum

False-colour SEM of villi in jejunum

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This image is part of the feature Landscapes Of The Human Body

Credit: PROF. P. MOTTA/DEPT. OF ANATOMY/UNIVERSITY "LA SAPIENZA", ROME/SCIENCE PHOTO LIBRARY

Caption: False-colour scanning electron micrograph (SEM) of the interior of the human jejenum, a section of the small intestine, the site of absorption of the products of digestion. The jejunum is deeply folded & lined with tongue-shaped projections or villi, which are covered by absorptive & goblet cells. The villi are a structural modification to increase the effective absorptive & secretory surface of the mucous membrane. The secretions of the goblet cells acts to protect & lubricate the gut & help in the formation of faeces. Approximate magnification: x70 at 6x7cm size.

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Keywords: anatomy, digestion, digestive system, false-coloured, gut, human body, jejunum, small intestine, villi, villus

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