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The lungs are the organs of respiration taking up the bulk of the thorax.
This has only two fully developed lobes.
This has three lobes.
- Clinical implications
It is useful to know the direction of the bronchi to each lobe of each lung in order to advise patients with infection in one lobe what posture they should adopt to try to improve drainage from it. For bronchoscopy the segmental bronchial orientation is relevant.
- Alveoli lined by Type 1 and Type 2 pneumocytes