 Okay, we're gonna take a look at the stomach a little more in-depth here. So of course our esophagus is coming in here So food would come down and pass through cardiac sphincter And that goes into The cardiac region and you have the larger main component here is the body And then right here before it empties into the duodenum is the pylorus Along this edge up here We have the fundus down on the bottom this longer stretch here is the greater curvature More indented Section here is the lesser curvature Where empties out of the stomach and into the duodenum is the pyloric sphincter And then the individual ridges you're seeing in here These ridges are called rugae Okay, so now let's look over at the duodenum itself So the structure here is the duodenum Okay, the ridges you can see within the duodenum are the pleke circularis And you have the sphincter of odi, which you can't see in this model but it's where you have juices coming in to the duodenum