1.Describe the purpose of: (1) surfactant, (2) the ribs, (3) the respiratory membrane, (4) the diaphragm, (5) alveolar macrophages, and (6) the bronchial artery 2. Describe the sequence of events that...

1.Describe the purpose of: (1) surfactant, (2) the ribs, (3) the respiratory membrane, (4) the diaphragm, (5) alveolar macrophages, and (6) the bronchial artery

2. Describe the sequence of events that takes place during inspiration.

3. Explain the oxygen demands of quiet respiration versus forced respirations.

4.Explain why frequent forced expirations are fatiguing.