The appendicular artery is a branch from the lower division of the ileocolic artery, runs behind the terminal ileum and enters the mesoappendix a short distance from the appendicular base. Here it gives off a recurrent branch, which anastomoses with a branch from the posterior caecal artery.
The main artery approches the tip of the appendix, this one may be thrombosed in appendicitis >> gangrene and infarction.
SMA Rt colic and ileocolic ileiocolic gives ant and post caecal post caecal appendicular.
general good health of people who have had their appendix removed or who have a congenital absence of an appendix may tell that “The appendix is traditionally thought to have no function in the human body. There have been no reports of impaired immune or gastrointestinal function in people without an appendix”
Some might say; it secretes special type of mucus, IgA rich mucus, which works as anti-harmful bacterial agent.
Others suggest it’s a housekeeper of the good bacteria.