Biological chemistry

[Wraithcraft]

That spleen thing with the blood regeneration and disease stuff sounds good.

But I don't know about appendixes . Aren't they normally removed with an appendectomy due to appendicitis (I like that idea for a minor random event) and the patient wouldn't suffer any ill effects from it? I was thinking I'd just add them in and have a procedure to remove them. Maybe someone will finally make artifact organs or have a fun idea for a cyborg appendix that provides an actual function and then there would be a use for an appendix.

appendixes are really darn close to being a vestigial organ. the bacteria thing was only found out pretty recently. before that, it was only notable for swelling up and trying to kill you sometimes. 

a cyborg appendix would probably be useless in that case