realistic low poly human stomach and duodenum set. healthy stomach, ulcer diseases, helicobacter pylori bacteria attack.

absorption acid anatomical anatomy antrum attack background bacteria blood bulb cancer cardia design diarrhea digestion digestive duodenum fluid food fundus gastric gastritis gastrointestinal helicobacter human illustration isolated low medical medicine model modern mucosa organ origami pink poly polygonal pylons pylori red secretion set stomach tract triangle ulcer vector white