Histology of the appendix (large intestine) - mucosa (M-cells, crypts, lamina propria, nodules), submucosa, muscularis externa, and serosa.

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Appendix. This is a photomicrograph of the human appendix. The arrangement of the layers in its walls is similar to that seen elsewhere in the large intestine. However, the outer layer of muscle fibres in the muscularis externa forms a continuous layer.

2023年10月30日 · Histologically the appendix looks quite similar to the colon and cecum. A distinctive feature is however the numerous lymph follicles and the parafollicular tissue in the connective tissue layer of the mucosa (lamina propria e mucosae) and the submucosa.

This is the appendix at low magnification with the mucosa and the submucosa with prominent lymphoid tissue beneath which are the inner circular and the outer longitudinal smooth muscle coats, all surrounded by a serosa with adjacent adipose tissue.

2023年10月3日 · The appendix is a narrow blind-ended tube that is attached to the posteromedial end of the cecum (large intestine). It contains a large amount of lymphoid tissue but is not thought to have any vital functions in the human body.

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.

The appendix is a prominent example of gut associated lymphoepithelial tissue, whose function is to react to the wide variety of antigens present in the gastrointestinal tract. It is composed of a large number of repeating units, the lymphoid follicles, each of …

The appendix is a prominent example of gut associated lymphoepithelial tissue, whose function is to react to the wide variety of antigens present in the gastrointestinal tract. It is composed of a large number of repeating units, the lymphoid follicles, each of which is divided into an apical dome, a large basal nodule with a germinal center ...

2017年5月6日 · Appendix. Notes. The mucosa of the appendix, like that of the colon, is characterized by straight crypts with no villi. However, unlike the colon, the appendix is also characterized by an abundance of lymphoid tissue, including …