2.67b Human Organs of Excretion

Notes


1. Lungs 
-> CO2

2. Kidneys 
-> Salts
-> Urea (Nitrogen waste from amino acids -> amino acids not stored -> amino acids excreted)
-> Excess water

3. Skin
-> Salts (Sweat)
-> Urea (very small amounts)
-> Water (Sweat)