How does the Circulatory system work together with the Excretory system in a humans body?
The circulatory system moves the blood around the body. Some of this blood passes through the kidneys, liver, lungs, and skin. Each of these organs performs some waste removal function on the blood. The simple would be that the circulatory system provides the excretory system with the blood to be cleaned. One thing that has always bother me about the excretory system is that there is no system provided to ensure that all blood is cleaned at some point. The body seems to rely on the fact that mixing all the blood up together and cleaning some of it will make all of it clean enough for re-use.
