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Thyrohyoid membrane

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Title: Thyrohyoid membrane  
Author: World Heritage Encyclopedia
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Subject: Larynx, Median thyrohyoid ligament, Thyroid cartilage, Internal laryngeal nerve, Piriform sinus
Publisher: World Heritage Encyclopedia

Thyrohyoid membrane

Thyrohyoid membrane
The ligaments of the larynx. Antero-lateral view.
Latin Membrana thyreohyoidea, membrana hyothyreoidea
Gray's p.1076
Anatomical terminology

The thyrohyoid membrane (hyothyroid membrane) is a broad, fibro-elastic layer, 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, and being separated from it by a mucous bursa, which facilitates the upward movement of the larynx during deglutition.

Its middle thicker part is termed the middle hyothyroid ligament (ligamentum hyothyreoideum medium; middle 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, and with the body of the hyoid bone.

Additional images

External links

  • Anatomy diagram: 25420.000-1 at Roche Lexicon - illustrated navigator, Elsevier
  • 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"

This article incorporates text from a public domain edition of Gray's Anatomy.

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