![This is blank.](https://digitalhistology.org/wp-content/themes/histology-unified/imgs/trans.png)
Appendix
The appendix is a fingerlike appendage on the first portion of the large intestine. Like the large intestine, it also has straight intestinal glands and lacks villi. Abundant lymphoid tissue, both diffuse and nodular, occupies much of the lamina propria. Unlike the remainder of the large intestine, the appendix has a complete outer longitudinal muscle layer, thus lacking taeniae coli. The appendix is covered by a serosa. 100x
![Mucosa <p>The appendix is a fingerlike appendage on the first portion of the large intestine. Like the large intestine, it also has straight intestinal glands and lacks villi. Abundant lymphoid tissue, both diffuse and nodular, occupies much of the lamina propria. Unlike the remainder of the large intestine, the appendix has a complete outer longitudinal muscle layer, thus lacking taeniae coli. The appendix is covered by a serosa. 100x</p>](https://digitalhistology.org/wp-content/uploads/2024/04/Or.Dig_.Tub_.LgI-10A-1-ping.png)
Mucosa
The appendix is a fingerlike appendage on the first portion of the large intestine. Like the large intestine, it also has straight intestinal glands and lacks villi. Abundant lymphoid tissue, both diffuse and nodular, occupies much of the lamina propria. Unlike the remainder of the large intestine, the appendix has a complete outer longitudinal muscle layer, thus lacking taeniae coli. The appendix is covered by a serosa. 100x
![- Intestinal glands <p>The appendix is a fingerlike appendage on the first portion of the large intestine. Like the large intestine, it also has straight intestinal glands and lacks villi. Abundant lymphoid tissue, both diffuse and nodular, occupies much of the lamina propria. Unlike the remainder of the large intestine, the appendix has a complete outer longitudinal muscle layer, thus lacking taeniae coli. The appendix is covered by a serosa. 100x</p>](https://digitalhistology.org/wp-content/uploads/2024/04/Or.Dig_.Tub_.LgI-10A-5B-ping.png)
- Intestinal glands
The appendix is a fingerlike appendage on the first portion of the large intestine. Like the large intestine, it also has straight intestinal glands and lacks villi. Abundant lymphoid tissue, both diffuse and nodular, occupies much of the lamina propria. Unlike the remainder of the large intestine, the appendix has a complete outer longitudinal muscle layer, thus lacking taeniae coli. The appendix is covered by a serosa. 100x
![- Diffuse lymphoid tissue <p>The appendix is a fingerlike appendage on the first portion of the large intestine. Like the large intestine, it also has straight intestinal glands and lacks villi. Abundant lymphoid tissue, both diffuse and nodular, occupies much of the lamina propria. Unlike the remainder of the large intestine, the appendix has a complete outer longitudinal muscle layer, thus lacking taeniae coli. The appendix is covered by a serosa. 100x</p>](https://digitalhistology.org/wp-content/uploads/2024/04/Or.Dig_.Tub_.LgI-10A-4-ping.png)
- Diffuse lymphoid tissue
The appendix is a fingerlike appendage on the first portion of the large intestine. Like the large intestine, it also has straight intestinal glands and lacks villi. Abundant lymphoid tissue, both diffuse and nodular, occupies much of the lamina propria. Unlike the remainder of the large intestine, the appendix has a complete outer longitudinal muscle layer, thus lacking taeniae coli. The appendix is covered by a serosa. 100x
![- Lymphoid nodules <p>The appendix is a fingerlike appendage on the first portion of the large intestine. Like the large intestine, it also has straight intestinal glands and lacks villi. Abundant lymphoid tissue, both diffuse and nodular, occupies much of the lamina propria. Unlike the remainder of the large intestine, the appendix has a complete outer longitudinal muscle layer, thus lacking taeniae coli. The appendix is covered by a serosa. 100x</p>](https://digitalhistology.org/wp-content/uploads/2024/04/Or.Dig_.Tub_.LgI-10A-5-ping.png)
- Lymphoid nodules
The appendix is a fingerlike appendage on the first portion of the large intestine. Like the large intestine, it also has straight intestinal glands and lacks villi. Abundant lymphoid tissue, both diffuse and nodular, occupies much of the lamina propria. Unlike the remainder of the large intestine, the appendix has a complete outer longitudinal muscle layer, thus lacking taeniae coli. The appendix is covered by a serosa. 100x
![Submucosa <p>The appendix is a fingerlike appendage on the first portion of the large intestine. Like the large intestine, it also has straight intestinal glands and lacks villi. Abundant lymphoid tissue, both diffuse and nodular, occupies much of the lamina propria. Unlike the remainder of the large intestine, the appendix has a complete outer longitudinal muscle layer, thus lacking taeniae coli. The appendix is covered by a serosa. 100x</p>](https://digitalhistology.org/wp-content/uploads/2024/04/Or.Dig_.Tub_.LgI-10A-2-ping.png)
Submucosa
The appendix is a fingerlike appendage on the first portion of the large intestine. Like the large intestine, it also has straight intestinal glands and lacks villi. Abundant lymphoid tissue, both diffuse and nodular, occupies much of the lamina propria. Unlike the remainder of the large intestine, the appendix has a complete outer longitudinal muscle layer, thus lacking taeniae coli. The appendix is covered by a serosa. 100x
![Muscularis externa <p>The appendix is a fingerlike appendage on the first portion of the large intestine. Like the large intestine, it also has straight intestinal glands and lacks villi. Abundant lymphoid tissue, both diffuse and nodular, occupies much of the lamina propria. Unlike the remainder of the large intestine, the appendix has a complete outer longitudinal muscle layer, thus lacking taeniae coli. The appendix is covered by a serosa. 100x</p>](https://digitalhistology.org/wp-content/uploads/2024/04/Or.Dig_.Tub_.LgI-10A-3-ping.png)
Muscularis externa
The appendix is a fingerlike appendage on the first portion of the large intestine. Like the large intestine, it also has straight intestinal glands and lacks villi. Abundant lymphoid tissue, both diffuse and nodular, occupies much of the lamina propria. Unlike the remainder of the large intestine, the appendix has a complete outer longitudinal muscle layer, thus lacking taeniae coli. The appendix is covered by a serosa. 100x
![Serosa <p>The appendix is a fingerlike appendage on the first portion of the large intestine. Like the large intestine, it also has straight intestinal glands and lacks villi. Abundant lymphoid tissue, both diffuse and nodular, occupies much of the lamina propria. Unlike the remainder of the large intestine, the appendix has a complete outer longitudinal muscle layer, thus lacking taeniae coli. The appendix is covered by a serosa. 100x</p>](https://digitalhistology.org/wp-content/uploads/2024/04/Or.Dig_.Tub_.LgI-10A-6-ping.png)
Serosa
The appendix is a fingerlike appendage on the first portion of the large intestine. Like the large intestine, it also has straight intestinal glands and lacks villi. Abundant lymphoid tissue, both diffuse and nodular, occupies much of the lamina propria. Unlike the remainder of the large intestine, the appendix has a complete outer longitudinal muscle layer, thus lacking taeniae coli. The appendix is covered by a serosa. 100x
![Image source > <p>Image taken of a slide in the Oklahoma State University collection.</p>](https://digitalhistology.org/wp-content/uploads/2024/04/OK-State-University.png)
Image source >
Image taken of a slide in the Oklahoma State University collection.