The small intestine absorbs nearly all your nutrients — so it maximizes surface area with three levels of folding. Tap each amplifier and each part of a villus.
Circular folds
Small intestinesurface area = absorption
The structures
Together, folds × villi × microvilli boost the surface area ~600-fold — to roughly the size of a tennis court.
📷 Reference image
A real labeled figure to compare with the interactive above.
Small Intestine Villi — OpenStax, CC BY 3.0 (via Wikimedia Commons)
