What is the function of the respiratory System?
supply oxygen, dispose carbondioxide
What is the first step of respiration?
Define pulmonary ventilation.
Breathing for gas exchange
What is the second step of respiration?
Define external respiration.
gas exchange between blood and the air of the alveoli
What is the third step of respiration?
transport of respiration gases
Define transport of respiration gases.
cardiovascular system transports oxygen and carbondioxide between lungs and tissue cells
What is the fourth step of respiration?
Define Internal Respiration
gas exchange between the blood and tissue cells of the capillaries