- - Small air sacs in the lungs
- - lung sacs (anagram of i love l.a.)
- - Lung air sacs
- - Tiny air-sacs in the lungs
- - Parts of the lungs
- - Lung structures
- - Honeycomb cells
- - Air cells in the lung
- - Lung cells
- - Air cells
- - Cells in a honeycomb.
- - Small air bags in the lungs
- - Sockets which accommodate the roots of teeth
- - Air sacs
- - Tooth sockets
- - Where oxygen and carbon dioxide are exchanged
- - Tooth sockets, anatomically speaking.
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