Thyrohyoid membrane

The thyrohyoid membrane (or hyothyroid membrane) is a broad, fibro-elastic sheet of the larynx. It 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 cornua of the hyoid bone, thus passing behind the posterior surface of the body of the hyoid. It is separated from the hyoid bone by a mucous bursa, which facilitates the upward movement of the larynx during swallowing.

Thyrohyoid membrane
The ligaments of the larynx. Antero-lateral view.
Details
Identifiers
LatinMembrana thyreohyoidea, membrana hyothyreoidea
TAA06.2.02.012
FMA55132
Anatomical terminology

Its middle thicker part is termed the median thyrohyoid ligament, its lateral thinner portions are pierced by the superior laryngeal vessels and the internal branch of the superior laryngeal nerve.

Its anterior surface is in relation with the thyreohyoideus, 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)

  • "Anatomy diagram: 25420.000-1". Roche Lexicon - illustrated navigator. Elsevier. Archived from the original on 2014-01-01.
  • lesson11 at The Anatomy Lesson by Wesley Norman (Georgetown University) (larynxmembranes)
  • Atlas image: rsa3p11 at the University of Michigan Health System - "Larynx, anterior view"
  • Atlas image: rsa3p12 at the University of Michigan Health System - "Larynx, lateral view"


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