Atlas One · Host Biology · Scale 06 — Organ

Lung

Paired gas-exchange organs: right (3 lobes) and left (2 lobes). Branching airways (23 generations, Weibel) connect trachea to ~300 million alveoli (70 m² surface). Dual circulation: pulmonary + bronchial. TLC ~6 L; tidal volume ~0.5 L at rest.

Also known as: lungs, pulmo, pulmones

Scale 06 — OrganScale
draftStatus
2026-06-03Last Reviewed
This is an auto-generated stub page built from atlas entry frontmatter. A richer hand-crafted page is planned. See the atlas source for the full entry including detailed body sections.
lung

Lung

Paired gas-exchange organs: right (3 lobes) and left (2 lobes). Branching airways (23 generations, Weibel) connect trachea to ~300 million alveoli (70 m² surface). Dual circulation: pulmonary + bronchial. TLC ~6 L; tidal volume ~0.5 L at rest.