Complete collection of airbag details

Airbag is a flexible rubber capsule filled with compressed air or water. Elasticity is achieved by using the compressibility of air and the fluidity of water. Birds have nine airbags. It has the functions of assisting breathing, reducing body density, reducing friction between organs and dissipating heat. The rear air is communicated with the end of the middle bronchus, and the front air bag is communicated with the abdominal bronchus. Except for a single interlocking air bag, the rest are in pairs.