Histology/organization of the Gut Wall From esophagus to anus, gi tract has the same basic arrangement of tissues There are 4 layers that can be distinguished Mucosa Submucosa Muscularis Serosa5 Histology/organization of the Gut Wall From esophagus to anus, GI tract has the same basic arrangement of tissues. There are 4 layers that can be distinguished • Mucosa • Submucosa • Muscularis • Serosa