When during fetal development do rhythmic breathing movements begin?

asked Oct 10, 2018 150k views

1 vote

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3 votes

The respiratory usually develops at 12 weeks so i would definitely say breathing starts in this period.

Mcnesium answered Oct 13, 2018

8.8k points

5 votes

Answer:

late in the third trimester the other person is wrong

Step-by-step explanation:

Sundae answered Oct 15, 2018

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