In a Full-Term Newborn, How Many Alveoli are Present at Birth

Question

In a full-term newborn, how many alveoli are present at birth?
A) 240 million
B) 200 million
C) 24 million
D) 50 million

Accepted Answer

At birth, a full-term newborn has approximately 24 million alveoli. The number of alveoli increases significantly after birth, reaching adult numbers by around 8 years of age.