In the same way, the eventual state of tissues that have been irradiated depends on how badly they were damaged. This, in turn, depends on the type and dose of radiation and just how it was given. Let us again use skin as an example. After a small dose of radiation, skin can look normal [...]

Water and protein leak constantly from the blood vessels and tissues of the body, and are drained away in the lymphatic vessels. A network of small lymphatic vessels links up with deeper, larger ones in the groin and under the arms, and it is at these sites that the lymph is filtered through lymph nodes, [...]