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Stages of mouse and rat lung development compared with that of humans (E embryonic day, P postnatal day)
| Stage | Gestational age | ||
|---|---|---|---|
| Mouse (days) |
Rat (days) |
Human (weeks) |
|
| Embryonic | E9-E11.5 | E8-E13 | 3–7 |
| Pseudoglandular | E11.5-E16.5 | E18-E18 | 5–17 |
| Canalicular | E16.5-E17.5 | E18-E20 | 16–29 |
| Saccular | E17.5-P5 | E20-P5 | 24–38 |
| Alveolar | P5-P28 | P5-P30 | 32-adolescence |
