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Chapter 12 - Trachea and Larynx

from Section 4 - Neck

Published online by Cambridge University Press:  21 October 2019

By
Elizabeth R. Benjamin  and
Kenji Inaba
Edited by
Demetrios Demetriades ,
Kenji Inaba  and
George Velmahos
Demetrios Demetriades
Affiliation:
University of Southern California
Kenji Inaba
Affiliation:
University of Southern California
George Velmahos
Affiliation:
Massachusetts General Hospital, Boston
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Summary

  • The trachea is 10–12 cm long and 2–2.5 cm wide, extending from C6 to T5.

  • The trachea is composed of 16–20 incomplete rings with a flattened posterior wall of muscle and fibrous tissue.

  • The anatomic borders of the trachea include the isthmus of the thyroid and paired strap muscles anteriorly. The common carotid arteries, thyroid lobes, and recurrent laryngeal nerves form the lateral borders.

  • The paired strap muscles are in front of the trachea and larynx. These include the sternohyoid muscles and the underlying sternothyroid and thyrohyoid muscles.

  • The thyroid cartilage is suspended from the hyoid bone by the thyrohyoid membrane. The cricothyroid ligament connects the inferior portion of the thyroid cartilage to the cricoid cartilage. Inferior to this is the first tracheal ring.

  • The larynx is composed of three paired (arytenoid, corniculate, and cuneiform), and three unpaired (cricoid, thyroid, and epiglottic) cartilages.

Type
Chapter
Information
Atlas of Surgical Techniques in Trauma , pp. 82 - 88
Publisher: Cambridge University Press
Print publication year: 2020

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