The primary function of the respiratory system
is to supply the blood with oxygen in order for the blood
to deliver oxygen to all parts of the body. The respiratory
system does this through breathing. When we breathe, we inhale
oxygen and exhale carbon dioxide. This exchange of gases is
the respiratory system's means of getting oxygen to the blood.
Respiration is achieved through the mouth, nose, trachea,
lungs, and diaphragm. |