Question

What is the importance of pneumatic bones and air sacs in Aves?

Answer 1

Importance of pneumatic bones

The long bones in birds filled with air are called pneumatic bones. These make the body light in weight and help birds in flying.



Importance of air sacs

Air sacs are considered accessory respiratory organs. They are continuous with lungs so that extra air can be filled in air sacs, thus air sacs supplement respiration. This helps in increasing the efficiency of the lungs so that they can fly long distances without getting tired.