A segment of the gut wall opened in steps: twenty structures from the lumen, the epithelium, the lamina propria and the muscularis mucosae of the mucosa with its lymphoid nodules and glands, through the submucosa with its glands and Meissner's plexus, the circular and the longitudinal muscle with…
A real anatomical diagram. Hover any part to see its name, click to answer the quiz question.