We just learned about the Bowman's Capsule.
Another part of the nephron of the kidney is the Proximal Tubule.
When the blood is all collected in the Bowman's Capsule, it slowly filters out some of the bad things in the blood which turn into urea to be pushed out of the body later.
(from: wikipedia - proximal tubule)
Kid Facts - Blast from the past: Earlobe
