Overview: mucosa
Simple columnar epithelium with microvilli lines the small intestine, possessing both absorptive (enterocytes) and mucus-secreting goblet cells. Villi, extending from the surface into the lumen, have a core of lamina propria covered by surface epithelium. Intestinal glands radiate peripherally from the bases of villi and extend to the muscularis mucosae. 200x
Villi
Simple columnar epithelium with microvilli lines the small intestine, possessing both absorptive (enterocytes) and mucus-secreting goblet cells. Villi, extending from the surface into the lumen, have a core of lamina propria covered by surface epithelium. Intestinal glands radiate peripherally from the bases of villi and extend to the muscularis mucosae. 200x
Absorptive cells
Simple columnar epithelium with microvilli lines the small intestine, possessing both absorptive (enterocytes) and mucus-secreting goblet cells. Villi, extending from the surface into the lumen, have a core of lamina propria covered by surface epithelium. Intestinal glands radiate peripherally from the bases of villi and extend to the muscularis mucosae. 200x
Goblet cells
Simple columnar epithelium with microvilli lines the small intestine, possessing both absorptive (enterocytes) and mucus-secreting goblet cells. Villi, extending from the surface into the lumen, have a core of lamina propria covered by surface epithelium. Intestinal glands radiate peripherally from the bases of villi and extend to the muscularis mucosae. 200x
Lamina propria
Simple columnar epithelium with microvilli lines the small intestine, possessing both absorptive (enterocytes) and mucus-secreting goblet cells. Villi, extending from the surface into the lumen, have a core of lamina propria covered by surface epithelium. Intestinal glands radiate peripherally from the bases of villi and extend to the muscularis mucosae. 200x
Intestinal glands
Simple columnar epithelium with microvilli lines the small intestine, possessing both absorptive (enterocytes) and mucus-secreting goblet cells. Villi, extending from the surface into the lumen, have a core of lamina propria covered by surface epithelium. Intestinal glands radiate peripherally from the bases of villi and extend to the muscularis mucosae. 200x
Lacteals >
Lacteals, blind-ended lymphatic capillaries that extend into each villus, function in fat absorption.