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== Respiratory Alveoli==
== Respiratory Alveoli==
Respiratory alveoli numbers continue to increase postnatally through childhood. The total number of alveoli plateauing at 7 to 8 years of age.


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Revision as of 09:40, 11 March 2013

Respiratory Alveoli

Respiratory alveoli numbers continue to increase postnatally through childhood. The total number of alveoli plateauing at 7 to 8 years of age.

Age (months) Alveoli (million) Respiratory Airways (million) Generations of Airways
Birth 24 1.5
3 86 1.8
3 77 2.5 21
3 73 2.0
7 112 3.7
13 129 4.5 22
16 127 4.7
22 160 7.1
48 257 7.9
98 280 14.0 23
Adult 296 14.0 23

Reference

<pubmed></pubmed>

Dunnill MS. Postnatal growth of the lung. Thorax 1962;17:329–333. PDF

File history

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