Respiratory system


Updated 10/08/08 5:35 PM · Posted by FitSugar · 0 comments

HEALTH GUIDE REFERENCE FROM A.D.A.M

When you breathe in, air first travels through the nasal passageway or mouth, through the trachea, which further divides into bronchi, then smaller bronchioles, finally ending in the tiny air sacs (alveoli) in the lungs.

Respiratory system

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