How has the avian lung adapted to the metabolic demands of flight?
A)Airflow through the avian lung is bidirectional.
B)There is more dead space within the avian lung so that oxygen can be stored for future use.
C)Countercurrent circulation is present in the avian lung.
D)Gas exchange occurs during both inhalation and exhalation.

Question

Quizplus · Accepted Answer

The avian lung has a unique system where air sacs allow for unidirectional airflow, enabling gas exchange during both inhalation and exhalation, which is efficient for the high metabolic demands of flight.

How Has the Avian Lung Adapted to the Metabolic Demands