List and describe the structures an oxygen molecule will pass through as it moves from the outside of the body (starting at the nose) and into the blood at the pulmonary capillaries.

Using Boyle's law and a starting atmospheric pressure of 760 mmHg explain the changes in intrapleural, and intrapulmonary pressures during an inspitatory and expiratory ventilation cycle. Also explain what anatomical structures are involved in producing these pressure changes.

Using partial pressures for oxygen and carbon dioxide explain the gas exchange that occurs in the lungs during external respiration and the exchange that occurs at the tissue level during internal respiration

Describe the process of Carbon dioxide transportation in the blood including the carbonic acid-bicarbonate buffer system and the chloride shift

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