Small intestine villus

Small intestine villus

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Credit: R. BICK, B. POINDEXTER, UT MEDICAL SCHOOL/SCIENCE PHOTO LIBRARY

Caption: Small intestine villus, fluorescence deconvolution micrograph. Fluorescent dyes have been used to highlight tissues, cellular structures and proteins: f-actin (green), cell nuclei (blue), occludin (red). Villi are the functional structures lining the walls of the intestines. One villus is at centre, with two more either side. Actin is a protein that is a major part of a cell's cytoskeleton, and one of its forms is filamentous actin (f-actin). The cell nuclei seen here are part of the columnar epithelium that forms the shape of a villus. Occludin is a protein found at cellular joins called tight junctions. This tissue sample is from the illeum section of the small intestine.

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Keywords: actin, anatomical, anatomy, biochemical, biochemistry, cell, cell biology, cell nuclei, cell nucleus, cells, cytology, dapi, deconvolved, digestion, digestive system, dye, fluorescence, fluorescence deconvolution, fluorescent, gut, histological, histology, human body, immunofluorescence, immunofluorescent, intestinal, light microscope, marker, micrograph, occludin, protein, small intestine, tissue, villus

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