Respiratory Per 7

Respiratory System Pulmonologists: Dr. Davis Dr. Jackie Dr. Eduardo Dr. Kristen

Functions of the Respiratory System The main function is to absorb and release carbon dioxide. 

Respiratory System

GA S EX CH AN T he g a se s e xc ha n g e d a re GE Carb on Di o xi d e & Ox yg e n . ! Ga s e x ch a ng e o c cu rs i n t h e 

a l v e ol i .

-Oxygen and Carbon Dioxide are carried by the blood. -Gases move by diffusion that is, they move from an area of higher concentration to an area of lower concentration. -The lining of the alveoli must be moist to help gases diffuse

3 PRIN CIPL ES OF GAS EXCH ANG Students know how the complementary activity of major body systems provide cells with E oxygen and nutrients and removes toxic waste products such as carbon dioxide. 

Oxygen Diffusion Alveolus Capillary 

Capillary and alveolus walls

Carbon Diffusion

Alveolus Capillary

Capillary and alveolus walls