Ch 11 test study questio - Study guides, Class notes & Summaries

What forces must be overcome to move air into the respiratory system? 1. Tissue movement 2. Elastic forces of lung tissue 3. Airway resistance 4. Surface tension forces - Answer 1, 2, 3, and 4 What term is used to note the difference between inspiratory lung volume and expiratory lung volume at any given pressure? - Answer Hysteresis

According to Poiseuille's law, which of the following statements is true if we wish to maintain a constant flow of gases? - Answer Halving the tube radius will require a 16-time increase in driving pressure Most of the drop in pressure due to frictional resistance to gas flow occurs in what region? - Answer Nose, mouth, and large airways Which of the following statements about Raw is true? - Answer The greater the lung volume, the less is the Raw