Layers and Articulations
The two laminae that make up the main lateral, surfaces of the thyroid cartilage extend obliquely to cover either side of the trachea. The oblique line marks the superior lateral borders of the thyroid gland.
The posterior edge of each lamina articulates with the cricoid cartilage inferiorly at a joint called the cricothyroid joint.
Movement of the cartilage at this joint produces a change in tension at the vocal folds, which in turn produces variation in voice.
The entire superior edge of the thyroid cartilage is attached to the hyoid bone by the thyrohyoid membrane.
Read more about this topic: Thyroid Cartilage
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