2.67b Human organs of Excretion

2.67b Recall that the lungs, kidneys and skin are organs of excretion.

1) Lungs - The lungs excrete carbon dioxide. A waste product from Respiration

2) Kidneys - Excrete excess water, urea and salts.

3) Skin - Excrete water and salts (sweating) and a small bit of Urea.