HealthSeptember 2, 2026

villi

VIL-eye

Definition

Tiny, finger-like projections lining the inner surface of the small intestine that increase the surface area for nutrient absorption.

Etymology

Derived from the Latin word 'villus', meaning 'shaggy hair' or 'tuft of hair', used in anatomy to describe the hair-like structures found on various bodily membranes.

In the news

The article describes the small intestine's surface as being ruffled with villi, which play a crucial role in how the body absorbs nutrients, including fat.

Scientists Uncover a Surprising Way Fructose May Promote Obesity

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