Thyrohyoid membrane

The thyrohyoid membrane (or hyothyroid membrane) is a broad, fibro-elastic sheet of the larynx.

Thyrohyoid membrane
The ligaments of the larynx. Antero-lateral view.
Details
Identifiers
LatinMembrana thyrohyoidea, membrana hyothyreoidea
TA98A06.2.02.013
TA21651
FMA55132
Anatomical terminology

Structure

The thyrohyoid membrane is attached below to the upper border of the thyroid cartilage and to the front of its superior cornu, and above to the upper margin of the posterior surface of the body and greater cornu of the hyoid bone.[1] It passes behind the posterior surface of the body of the hyoid. It is separated from the hyoid bone by a mucous bursa, which allows for the upward movement of the larynx during swallowing.[1]

Its middle thicker part is termed the median thyrohyoid ligament.[1] Its lateral thinner portions are pierced by the superior laryngeal vessels and the internal branch of the superior laryngeal nerve.[1] Its anterior surface is in relation with the thyrohyoideus, sternohyoideus, and omohyoideus muscles, and with the body of the hyoid bone. It is pierced by the internal laryngeal nerve and the superior laryngeal artery.

Additional images
  • Thyrohyoid membrane
  • Thyrohyoid membrane
  • Thyrohyoid membrane
  • Muscles, nerves and arteries of neck. Deep dissection. Anterior view.

References

This article incorporates text in the public domain from page 1076 of the 20th edition of Gray's Anatomy (1918)

  1. Coleman, Lee; Zakowski, Mark; Gold, Julian A.; Ramanathan, Sivam (2013-01-01), Hagberg, Carin A. (ed.), "Chapter 1 - Functional Anatomy of the Airway", Benumof and Hagberg's Airway Management (Third Edition), Philadelphia: W.B. Saunders, pp. 3–20.e2, ISBN 978-1-4377-2764-7, retrieved 2021-01-06


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