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Breathing Movements


 

7 months, 3 weeks

From The Biology of Prenatal Development.Buy Now

Script: By 30 weeks, breathing movements are more common and occur 30 to 40% of the time in an average fetus.

All ages referenced to fertilization, not last menstrual period. One month = 4 weeks.
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Breathing Movements
Breathing Movements
( 7 months, 3 weeks)
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( 8 months, 1 week)
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