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1. The olfactory pits form from which of the following?
 
 
 
 

Question 1 of 7

2. A full complement of mature alveoli are present by ________.
 
 
 
 

Question 2 of 7

3. If a baby is born prematurely before type II cells produce sufficient pulmonary surfactant, which of the following might you expect?
 
 
 
 

Question 3 of 7

4. When do fetal breathing movements begin?
 
 
 
 

Question 4 of 7

5. What happens to the fluid that remains in the lungs after birth?
 
 
 
 

Question 5 of 7

6. Critical Thinking: During what timeframe does a fetus have enough mature structures to breathe on its own if born prematurely? Describe the other structures that develop during this phase.

Question 6 of 7

7. Critical Thinking: Describe fetal breathing movements and their purpose.

Question 7 of 7