The ligaments of the larynx can be considered as two groups based on whether they attach components of the larynx together internally or externally.
Gross anatomy
Extrinsic ligaments
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thyrohyoid membrane
median thyrohyoid ligament
lateral thyrohyoid ligament
hyoepiglottic ligament
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cricothyroid membrane
median cricothyroid ligament
cricotracheal ligament
Intrinsic ligaments
cricovocal membrane (conus elasticus): attached inferiorly to the arch of the cricoid cartilage and ends superiorly in a free margin, which is attached anteriorly in the midline to the thyroid cartilage and posteriorly to the vocal process of the arytenoid cartilages. The free margin is thickened to form the vocal ligament, which in turn is covered by mucosa to form the true vocal cords.
quadrangular membrane: attached to the anterolateral surfaces of the arytenoid cartilage and extends to the lateral margins of the epiglottis. It contains a superior and inferior free margin. The superior free margin is covered by mucosa to form the aryepiglottic fold. The inferior free margin is thickened to form the vestibular ligament, which in turn is covered by mucosa to form the false vocal cords.