Answer: Those parts is were all the oxygen is distributed through the human body, and so technically it can be considered the respiratory system.
Answer Osmoregulation
Explanation: the kidney is responsible for the removal of wastes and detoxify the body also but in the case of patient who have lose about 85-90 % of their kidney function, they use artificial means called Dialysis to remove this waste. Osmoregulation has to do with the kidney filtering the blood for any waste product.
