What advantages in respiration do the alveolar lungs of mammals have in comparison with the lungs of reptiles?

The respiratory surface of the lungs of mammals, where gas exchange takes place, is represented by pulmonary vesicles – alveoli, the total surface of which is 50-100 times larger than the body surface. The main muscle of inspiration is the abdominal septum – the diaphragm. Due to these features, the respiratory system of mammals provides gas exchange more efficiently than the lungs of reptiles.

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