1 Be clear in what you are claiming. 2  Tell the reader which claims are based on facts and which on values. 3  Provide good evidence in support of your claim. 4  If a connection between the evidence and the claim is not obvious, tell the reader the connection.
Gas Exchange Between Alveolar Spaces and Capillaries. The function of the respiratory system is to exchange two gases: oxygen and carbon dioxide. The exchange takes place in the millions of alveoli in the lungs and the capillaries that envelop them. As shown below, inhaled oxygen moves from the alveoli to the blood in the capillaries, and carbon dioxide moves from the blood in the capillaries to the air in the alveoli.
RESPIRATORY SYSTEM. The complex of organs and tissue which are necessary to exchange blood carbon dioxide (CO 2) with air oxygen (O 2) is called the respiratory system. It consists of. structures, which function as ducts, and which together are called the conductive portion of the respiratory system structures which form the respiratory portion of the respiratory system, in which the exchange of CO 2 and O 2 is occurring and