Kidneys

Kidneys:

Kidneys filter the blood of harmful elements along with water in the blood, and gets all of them out of the body by storing them in the bladder.

There are 2 kidneys on 2 sides below all other parts in abdomen, just at the last ribs of abdomen. One kidney is slightly lower than the other.

Link (short general video) => https://www.youtube.com/watch?v=TrU5g19Om0k