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Normal anatomy

Reviewer: Adriana Handra-Luca, M.D. (see Reviewers page)
Revised: 3 February 2013, last major update October 2012
Copyright: (c) 2003-2013, PathologyOutlines.com, Inc.


● Cartilaginous and membranous tube (also called windpipe), extending from lower larynx at C6 to upper border of T5 vertebrae, where it divides into right and left mainstem bronchi
● Flattened posteriorly
● 11 cm long, 2-2.5 cm in diameter, diameter greater in men than women, adults than children
● Anteriorly: contacts thyroid isthmus, inferior thyroid veins, neck muscles, cervical fascia, anterior jugular veins, manubrium sterni, thymus, left innominate vein, aortic arch, innominate and left common carotid arteries, deep cardiac plexus
● Posteriorly: contacts esophagus
● Right bronchus appears to be a more direct continuation of trachea, and so is the site of most foreign bodies
● Supplied by inferior thyroid arteries


Trachea and bronchi

Tracheal bifurcation

End of Trachea > Normal anatomy

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