✋Introduction
Adaptations of the human lungs for gas exchange
In this lesson: I can describe how the human lungs are adapted to increase the amount of gas exchange. The lungs are made up of tiny air sacs called alveoli. Gas exchange takes place between air in alveoli and blood in capillaries.
Lesson outcome
Waxaan sharxi karaa sida sambabada aadanaha loo laqabsiiyay si ay u kordhiyaan xadiga is-weydaarsiga gaaska.