Did you know if you unfolded your intestines, they'd be taller than a giraffe? Yep, they form a digestive tube so lengthy it's got two sections. The so-called small intestine is about 22 feet long ...

Villi are tiny, flexible projections that line the lumen of the small intestine (the 9- to 16-foot ... the immune system will view the protein as harmful and launch an inflammatory attack ...

Researchers at the Francis Crick Institute have found that the small intestine grows in response to pregnancy in mice. This partially irreversible change may help mice support a pregnancy and prepare ...