Bronchiole

Bronchiole
Diagram of the alveoli with both cross-section and external view.
Details
SystemRespiratory system
Identifiers
MeSHD055745
TA98A06.5.02.026
TA23282
THH3.05.02.0.00005
FMA7410
Anatomical terminology

The bronchioles or bronchioli (pronounced bron-kee-oh-lee) are the smaller branches of the bronchial airways in the lower respiratory tract. They include the terminal bronchioles, and finally the respiratory bronchioles that mark the start of the respiratory zone delivering air to the gas exchanging units of the alveoli. The bronchioles no longer contain the cartilage that is found in the bronchi, or glands in their submucosa.[1]

  1. ^ Tortora GJ (2010). Principles of anatomy and physiology (12th ed.). Hoboken, NJ: John Wiley & Sons. pp. 883–888. ISBN 9780470233474.

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