Lymph nodes, I saw not the real thing, but I saw the picture. Its like grapes, a whole bunch of them connected together. That's lymph nodes. So they remove the lymph nodes. So if you get cut, nothing will come out to fight germs. We have other lymph nodes. The other lymph nodes will help, but it comes slow so they say wear gloves when you do things. Don't get cut. Even for too much blood pressure, they advise me to use the other hand, not this one, so be careful with this side.