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 ...

As far back as the 16th century, we were mapping out the murky territory of the human small intestine in anatomy books. We know, for example, that this digestive tract is—on average—about 6 ...

An image produced through Xenium analysis of mouse small intestines. Protruding “villi” stick up from the lining of the small intestine. Valley-like “crypts” fill in the gaps.

Approximately 85% of fluids ingested and those secreted by the GI tract on a daily basis are absorbed via the small intestine. During fetal development, the small intestine undergoes several ...