The mentioned video gives a thorough overview on the mechanisms involving resistance and flow in the airways of a human body. The awesome presentation adopted makes the topic multiple times easier and better retained. Timeline: 00:07 Introduction 01:12 Pressure and Flow - Relationship 02:51 Resistance and Flow - Relationship 04:38 Change in Pressure and Flow - Detailed Mechanism 11:12 Resistance in Respiratory Airways 14:10 Resistance and Flow - Detailed Mechanism 19:18 Pathological Significance 20:28 Ending Remarks