Functions of Blood

Cells are continously adding waste products, secretions and metabolites to blood whil taking from it vital nutrients, oxygen, hormones and other substances.
Overall, blood performs the following functions:
1.
Transports oxygen from the lungs to body tissues and transports the waste products of cellular metabolism and nutrients, hormones and enzymes.
2.
Regulates blood clotting, body temperature, acid-base balance, water and electrolytes.
3.
Protects against harmful organisms through white cells and antibodies.