If both liver and kidneys are cleaning the blood, what’s the difference between them?

Question

If both liver and kidneys are cleaning the blood, what’s the difference between them?

In: 2613

Answer 1

You constantly need to remove stuff from your blood. Your liver breaks down everything above a certain size. Your kidneys filter out everything below a certain size. Your liver does this by making proteins that bond to and breakdown stuff. Your kidneys are mostly just filters with very tiny holes (called nephrons). Your kidneys and liver do other things too.

There’s actually a size in between where compounds can last for a long time in your body.