Mechanical sensory information from the gut is detected by mechanoreceptors and transmitted to the brainstem via the vagus nerve.

“85% of the vagus nerve pathways are sensory in nature, carrying chemical and mechanical information.”

“In the case of the vagus nerve, the sensory information coming from your organs, from your lungs, from your gut... And by the way, your gut- when I say that, I don't just mean your stomach. I also mean the large and small intestine, and all the stuff above your stomach as well. The sensory information that's coming from the body includes both chemical information and mechanical information.”

“Now, the mechanical information is pretty straightforward to understand. If your gut is full of food or air or water and it's very distended, you can feel that. The reason you can feel that is because you have mechanoreceptors that sense stretch in the lining of the gut, and send that information by way of those axons up to and past the nodose ganglion.”

“so the mechanical are both in the actual stomach but also in the small bowel yes to a lesser extent and those are transmitted back from the gut via the vagus nerve”