Library · Cell
Appendiceal lymphoid cells
Make it clearer
In its two innermost layers, the appendix holds B lymphoid cells and T lymphoid cells. The mucosa is the lining that faces the lumen of the organ, the hollow part; the submucosa is the layer that sits just underneath it. Both have defense cells in them, and not scattered ones: they are clustered together as lymphoid tissue inside the wall of the appendix.
That leads to a conclusion about words. Since B cells and T cells, two different types, live side by side in that same place, calling something an "appendiceal lymphoid cell" doesn't name a type of cell: it names an address. It's like saying "the folks on the second floor": it tells you where they live, not who they are or what family they come from.
In brief
The appendiceal mucosa and submucosa contain B and T lymphoid cells. These cell populations are organized into lymphoid tissue within the wall of the appendix.
Because B and T cells coexist in the appendix, we can infer that "appendiceal lymphoid cell" is a label for a location, not the name of a unique cell lineage.
Sources (3)
- StatPearls, NCBI BookshelfAnatomy, Abdomen and Pelvis: AppendixPublished
- Clinical & Experimental Immunology via PubMed CentralThe immunology of the vermiform appendix: a review of the literaturePublished
- Mucosal Immunology via PubMedHuman gut-associated lymphoid tissues (GALT): diversity, structure, and functionPublished
This page explains the topic in general terms; it does not tell anyone what treatment to follow.
Updated