
Secondary lymphoid nodule
This secondary lymphoid nodule is located in the lamina propria of the small intestine. It has a pale-staining germinal center where lymphoblasts divide to form lymphocytes. Mature B lymphocytes accumulate at the periphery of the nodule, forming the dark mantle of the nodule. Nodules in the lamina propria filter tissue fluid. 200x

Secondary lymphoid nodule
This secondary lymphoid nodule is located in the lamina propria of the small intestine. It has a pale-staining germinal center where lymphoblasts divide to form lymphocytes. Mature B lymphocytes accumulate at the periphery of the nodule, forming the dark mantle of the nodule. Nodules in the lamina propria filter tissue fluid. 200x

- Germinal center
This secondary lymphoid nodule is located in the lamina propria of the small intestine. It has a pale-staining germinal center where lymphoblasts divide to form lymphocytes. Mature B lymphocytes accumulate at the periphery of the nodule, forming the dark mantle of the nodule. Nodules in the lamina propria filter tissue fluid. 200x

- Mantle
This secondary lymphoid nodule is located in the lamina propria of the small intestine. It has a pale-staining germinal center where lymphoblasts divide to form lymphocytes. Mature B lymphocytes accumulate at the periphery of the nodule, forming the dark mantle of the nodule. Nodules in the lamina propria filter tissue fluid. 200x

Diffuse lymphoid tissue
This secondary lymphoid nodule is located in the lamina propria of the small intestine. It has a pale-staining germinal center where lymphoblasts divide to form lymphocytes. Mature B lymphocytes accumulate at the periphery of the nodule, forming the dark mantle of the nodule. Nodules in the lamina propria filter tissue fluid. 200x

Intestinal lumen
This secondary lymphoid nodule is located in the lamina propria of the small intestine. It has a pale-staining germinal center where lymphoblasts divide to form lymphocytes. Mature B lymphocytes accumulate at the periphery of the nodule, forming the dark mantle of the nodule. Nodules in the lamina propria filter tissue fluid. 200x

Mucosal epitheliium
This secondary lymphoid nodule is located in the lamina propria of the small intestine. It has a pale-staining germinal center where lymphoblasts divide to form lymphocytes. Mature B lymphocytes accumulate at the periphery of the nodule, forming the dark mantle of the nodule. Nodules in the lamina propria filter tissue fluid. 200x

Lamina propria
This secondary lymphoid nodule is located in the lamina propria of the small intestine. It has a pale-staining germinal center where lymphoblasts divide to form lymphocytes. Mature B lymphocytes accumulate at the periphery of the nodule, forming the dark mantle of the nodule. Nodules in the lamina propria filter tissue fluid. 200x

Intestinal glands
This secondary lymphoid nodule is located in the lamina propria of the small intestine. It has a pale-staining germinal center where lymphoblasts divide to form lymphocytes. Mature B lymphocytes accumulate at the periphery of the nodule, forming the dark mantle of the nodule. Nodules in the lamina propria filter tissue fluid. 200x

Image source >
Image taken of a slide from the University of Mississippi collection.