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Alveoli Formation |
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Script: By approximately 32 weeks, true alveoli, or air "pocket" cells, begin developing in the lungs. They will continue to form until 8 years after birth. | ||
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All ages referenced to fertilization, not last menstrual period.
One month = 4 weeks.
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Alveoli Formation
( 8 months, 1 week) |
Flavor Preferences
( 8 months, 2 weeks) |
Firm Hand Grasp
( 8 months, 3 weeks) |
Ready for Birth
( 9 months) |
Cell Division
( 48 hours) |
Amnion and Germ Layers
( 7 days) |
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