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Angelyn V. Duhig posted an update in the group
Microscopic Photos of Digestive System Tissue Slides 4 years ago • The duodenum is the first of the three parts of the small intestine that receives partially digested food from the stomach and begins with the absorption of nutrients. It is directly attached to the pylorus of the stomach. It has a C-shape, it is closely related to the head of the pancreas, and consists of four sections: superior, descending, horizontal, and ascending parts.
• Shortest segment of the small intestine and consists of 4 layers.
• The mucosa consists of the simple columnar epithelium (lamina epithelialis), a connective tissue layer (lamina propria), and a smooth muscle layer (lamina muscularis).
• Villi in this region are leaf-like, tall, and numerous with fewer goblet cells in the epithelium
• Submucosa consist of mucous duodenal glands
• Muscularis externa consists of two smooth muscle layers, inner circular, and outer longitudinal layers.
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