Chapter 3 talks about blood and the functions and processes that the blood has to help keep human life running smoothly. There are many different examples of the ways that white blood cells defend our body from in intruding pathogens. The chapter also describes the types of blood that we each have and how it is important that we only exposed to that kind. What surprised me most in this chapter was reading about Rh blood groups. I did not know that if a baby has a different blood type as the mother that the mothers body will basically kill off the baby to protect her. I found it really interesting to read about the disorders that occur in red blood cells. Jaundice in particular caught my attention because I have heard of it before but did not
