The human small intestine is an essential organ that helps us absorb nutrients and vitamins from food. It is an average of 6 meters long and is covered with millions of villi that are separated by ...

You may think of the small intestine as a smooth tube that winds its way through your abdomen. But if you were to look really closely at the inside of the intestine, you would see that it is lined ...

While this image might look like a multicolored tile floor, it is actually a cross section through the fingerlike bumps on the intestinal wall called villi. The cells within the villi, which you can ...

The intestinal epithelium of our body consists of a myriad of elongated villi microarchitectures which increase the total surface area of the inner wall for better absorption of digested nutrients.

This story is part of a series exploring human anatomy and physiology complexities. Each story in this collection showcases discoveries reshaping our understanding of the body's inner workings, ...