Left Thyrohyoid Membrane (Membrana thyrohyoidea sinister)
Educational content only — not medical advice.
Anatomy
The left thyrohyoid membrane is a broad fibroelastic sheet connecting the superior border of the thyroid cartilage to the hyoid bone. Pierced on each side by the internal laryngeal nerve and superior laryngeal artery, it forms the anterolateral boundary of the pre-epiglottic space.
Clinical notes
The aperture in the thyrohyoid membrane transmitting the internal laryngeal nerve is the anatomical landmark for performing superior laryngeal nerve block for awake intubation.
Related structures
Educational references
FAQ
What is the role of the Left Thyrohyoid Membrane?
The left thyrohyoid membrane is a broad fibroelastic sheet connecting the superior border of the thyroid cartilage to the hyoid bone. Pierced on each side by the internal laryngeal nerve and superior laryngeal artery, it forms the anterolateral boundary of the pre-epiglottic space.
Why is the Left Thyrohyoid Membrane clinically important?
The aperture in the thyrohyoid membrane transmitting the internal laryngeal nerve is the anatomical landmark for performing superior laryngeal nerve block for awake intubation.
Source & license
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