BBC2 年
The structure of the digestive system
The intestines have lots of tiny folds in them which create a large surface area for absorbing nutrients and water. In the small intestine there are also specialised structures called villi which ...
BBC2 年
The structure of the digestive system
The intestines have lots of tiny folds in them which create a large surface area for absorbing nutrients and water. In the small intestine there are also specialised structures called villi which ...
Medscape4 年
Pharmacokinetic Considerations in Roux-en-Y Gastric Bypass Patients
Surface area for drug absorption The villi and microvilli responsible for the vast absorptive surface in the small intestine are of highest concentration in the duodenum and proximal jejunum.