Question: What is the cellular makeup and functions of appendix

Koko Mutai answered on 21 May 2018:

The appendix is classified as a vestigial organ, meaning that it has lost some of its original functions, but it has also gained other useful functions. It has been shown to harbour useful bacteria that help to fight other infections and repopulates the gut after an illness. It has also been shown to harbour B cells and T cells that are involved in immunity (how the body fights off infections.