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Small intestine, SEM
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Small intestine, SEM
Small intestine. Coloured scanning electron micrograph (SEM) of a cross-section through a foetal small intestine. The small intestine runs from the stomach to the large intestine. It is where digestion is completed and nutrients and water are absorbed into the blood. The interior (lumen) of the small intestine is lined with a highly folded surface. The folds, known as villi, project into the lumen increasing the surface area for absorption. Beneath the villi is the submucosal layer, which contains blood vessels. Beyond the submucosa is a layer of smooth muscle, which contracts and relaxes to move food along the intestine. Magnification: x45 when printed 10 centimetres wide
Science Photo Library features Science and Medical images including photos and illustrations
Media ID 6422638
© STEVE GSCHMEISSNER/SCIENCE PHOTO LIBRARY
Cross Section Digestion Digestive False Colour Fetal Foetal Folded Folds Histological Histology Intestinal Lumen Magnified Image Microscopic Photos Small Intestine Smooth Muscle Sub Mucosa Subjects System Tissue Tract Vascular Villi Villus False Coloured Sectioned
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