http://upload.wikimedia.org/wikipedia/commons/3/32/Gray972.png

uberon

Lungs had already developed as paired ventral pockets from the intestine in the ancestor of Osteognathostomata.[well established][VHOG]

UBERON:0002167

https://github.com/obophenotype/uberon/wiki/Modeling-paired-structures-Design-Pattern

• lower lobe of right lung
• upper lobe of right lung
• middle lobe of right lung
• right lung accessory lobe

• right pulmonary vein

• pair of lungs

• right pulmonary artery

• epithelium of right lung
• right lung hilus
• right lung bronchiole
• right lung lobe
• right lung alveolar system
• right lung associated mesenchyme
• vascular element of right lung