A bird's unique respiratory system is evolved for flight. What specialized anatomy do birds possess for ventilating their lungs?

Question

Quizplus · Accepted Answer

Anterior and posterior air sacs are a specialized anatomical feature that birds possess for ventilating their lungs. The anterior air sacs are interclavicular, cervical, and anterior thoracic. The posterior air sacs include posterior thoracic and abdominals.

A Bird's Unique Respiratory System Is Evolved for Flight