The specimen I had handed to the pathology resident had the appearance of a segment of organ that had lost its blood supply, and yet I knew that the flow into it was normal right up to the very wall of the gut. (discovermagazine.com)
Embedded in the wall of the gut, the enteric nervous system (ENS) has long been known to control digestion. (newscientist.com)
Hina had developed the devastating immune reaction known as graft - versus - host disease, in which donor cells attack the walls of the gut, skin, lungs, liver, and sometimes — though rarely — even the patient's brain. (discovermagazine.com)