ipCD – Gas Exchange and Transport and Control of Respiration

Benjamin Cummings. InterActive Physiology® 8-System Suite CD-ROM, Benjamin Cummings, 2004.

Objective:

To explain in short essays or diagrams how O₂ and CO₂ is exchanged in the lungs and systemic tissues, how O₂ and CO₂ is transported in the blood, and how p CO₂, pH, pO₂ affect ventilation, at the level of 85% proficiency for each student.

In order to achieve this objective, you will need to be able to:

1. Apply gas law relationships-between partial pressure, solubility, and concentration-to gas exchange.
2. Explain how O₂ and CO₂ is transported in the blood.
3. Explain the effect of variables, such as PO₂, PCO₂, and pH on oxygen and carbon dioxide transport.
4. Examine how PCO2, pH, PO2, and other factors affect ventilation.
5. Explain the role of respiratory neurons in the medulla and pons in setting the basic rhythm of breathing and in control of breathing.

© David G. Ward, Ph.D.  Last modified by wardd 23 May, 2006