Linked from
The 25 pages that link to Pulmonary alveolus, each with the reason it gives.
VentilationBroader topic: Alveoli receive ventilated air before oxygen diffuses into the blood.
Surface areaBroader topic: Numerous alveoli provide a large surface area for gas exchange.
Respiratory failureBroader topic: Gas exchange at alveoli is central to respiratory function.
InhalationBroader topic: Inhaled air ultimately reaches these sacs for gas exchange.
Inhalational anestheticBroader topic: Anesthetic enters pulmonary blood across the alveolar surface.
Respiratory diseaseBroader topic: Damage to these sacs can directly disrupt gas exchange.