Term Name: alveolus of lung
Synonyms: alveoli, alveolus, alveolus pulmonis, lung alveolus, pulmonary alveolus, respiratory alveoli, respiratory alveolus
Definition: Spherical outcropping of the respiratory bronchioles and primary site of gas exchange with the blood. Alveoli are particular to mammalian lungs. Different structures are involved in gas exchange in other vertebrates[WP].
Ontology: Cell Ontology [UBERON:0002299]

Relationships
is part of: alveolar sac alveolar system lung
has parts: alveolar atrium alveolar pore alveolar smooth muscle alveolar wall epithelial cell of alveolus of lung epithelial lining fluid lung saccule pulmonary alveolar parenchyma pulmonary alveolus epithelium
is a type of: alveolus endoderm-derived structure
has subtype: left lung alveolus right lung alveolus
inverse located_in: alveolar macrophage