Pathway of air Flashcards
What is the order of air into the body?
Nose Pharynx Larynx Bronchi Bronchioles Alveoli
Def. of gas exchange?
Movement of O2/CO2 at the lungs/muscles by diffusion
Def. of diffusion?
Net movement of molecules from high to low pp
Def. of diffusion gradient?
Difference between high pp and low pp
Def. of partial pressure?
Pressure a gas exerts within a mixture of gases
Where is external respiration?
Lungs
Where is internal respiration?
Muscles
What is external respiration between?
Alveoli and capillaries (blood)
What is internal respiration between?
Muscles and capillaries (blood)
Where is the movement of O2 in external respiration?
Alveoli to blood
Where is the movement of CO2 in internal respiration?
Muscles to blood
Where is the movement of CO2 in external respiration?
Blood to alveoli
Where is the movement of O2 in internal respiration?
Blood in muscles
How does O2 move in external respiration?
Diffusion high to low pp
How does CO2 move in external respiration?
Diffusion high to low pp
