intestinal villi. microvilli. intestinal epithelium. villi absorb nutrients from the food.

intestinal villi microvilli epithelium cell enterocyte goblet small intestines absorb nutrient food epithelial capillary network lacteal artery nerve vein lymph vessel absorption digestion villus structure anatomy physiology histology bowel wall lining medical science body gastrointestinal duodenum jejunum lymphatic system brush border amino acids carbohydrates lipids tract diagram biology gut gastric diffusion columnar vector