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.

What would you see if you peered inside a human small intestine? Here’s a glimpse at its structure, revealing a community of cells with different functions. A biopsy like this is generally very small ...

Chances are you've seen an illustration of DNA's double-helix structure and even ... and the squarish cell that lines the wall of the small intestine is designed to filter nutrients from food.

In the small intestine there are also specialised structures called villi which have a tiny hair-like structure poking into the small intestine to absorb digested food. If we stretched out all the ...