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Chapter 9 Respiratory System 2009

Chapter 9 Respiratory System 2009 - Chapter 22 INTRODUCTION...

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Chapter 22
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INTRODUCTION major function of respiratory system is to supply O 2 and dispose of CO 2 4 distinct processes: 1) Pulmonary ventilation: movement of air in and out of lungs 2) External respiration: exchange of gases between blood & air of alveoli 3) Transport of respiratory gases: role of blood in transport of gases between lungs & tissues of body 4) Internal respiration: at the level of the tissues, exchange of gases between blood in systemic capillaries and tissue cells first 2 functions handled by respiratory system; other two by CV system J. Carnegie, UofO
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