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March 25, 2013
Transmission electron microscope image of a thin section cut through a human jejunum(segment of small intestine) epithelial cell. Image shows apical end of absorptive cell with some of the densely packed microvilli that make up the striated border. Each microvillus is approximately 1um long by 0.1um in diameter and contains a core of actin microfilaments. JEOL 100CX TEM Louisa Howard, Credit: Katherine Connollly

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