Biology / Bio 3151 · Atom · ~20 seconds
Mammalian Lung Structure
Video not yet published
to the StudyWalks catalog
to the StudyWalks catalog
State
A mammalian lung branches from the trachea through bronchi and bronchioles into millions of alveoli, thin-walled sacs surrounded by capillaries, supplying the area per Bio 3143.
Show
Alveolar surface area in human lungs is roughly 75 square meters, about half a tennis court.
Watch for
Alveoli hold no muscle; airflow depends on pressure changes elsewhere in the chest.