Lectures on respiratory physiologyLectures on respiratory physiology
Mechanics of Breathing IIMechanics of Breathing II
Patterns of gas flow in tubes
Poiseuille equation for laminar flow
Patterns of gas flow in tubes
The Reynolds number
Pressures during the breathing cycle
Number of airways increases rapidly with generation
Most resistance is in the medium sized airways
Airway resistance falls with increasing lung volume
Flow – volume curves
Isovolume pressure-flow curves
Mechanism of dynamic compression
Flow – volume curves
Flow through collapsible tubes
Mechanism of dynamic compression
Work done on the lung during breathing
