Health Dictionary
Reliable, easy-to-read patient information on common medical conditions — written in plain language, free of jargon, and grounded in current evidence. Browse the most frequent diagnoses, understand what they mean for everyday life, and learn which steps and questions help you have a focused conversation with your doctor.
Villi
Introduction
Overview
Overview
Villus (Latin: “shaggy hair”[1], plural villi) can refer to:
- Intestinal villus. This is the most common meaning when not more precisely specified
- Chorionic villi, found on the surface of the outermost membrane (the chorion) of the fetus
- Arachnoid villi, located on the arachnoid membrane of the brain