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The Art in Science

Product Image Guts and Glory (Green)

Guts and Glory (Green)

Lymari Lopez-Diaz, Ph.D., Postdoctoral Research Fellow, Department of Molecular and Integrative Physiology, University of Michigan

The job of the intestine is to absorb food. To provide maximum surface area, the absorptive surface of the intestine is shaped into billions of finger-like projections called villi. This is a cross-section of one villus. The absorptive epithelial cells are on the outside of the villus (green). The orange and yellow cells in the center include blood vessels, nerves, muscle, and immune cells, all of which function with the epithelial cells as a cohesive unit designed for absorption.