Phase in lung development beginning
in utero (about
\(\pu{32}\) to
\(\pu{36}\) weeks in the human fetus) and lasting until about eight years of age.
Note: In this phase, the terminal alveolar saccules subdivide several more times, giving rise to the mature
alveoli.
Source: PAC, 2016,
88, 713. (
Glossary of terms used in developmental and reproductive toxicology (IUPAC Recommendations 2016)) on page 719 [
Terms] [
Paper]