The medial surface of the inferior horn has a facet for articulation with the cricoid cartilage.
The superior horn is connected by a lateral thyrohyoid ligament to the posterior end of the greater horn of the hyoid bone.
The lateral surface of each thyroid lamina is marked by a ridge (the oblique line), which curves anteriorly from the base of the superior horn to a little short of midway along the inferior margin of the lamina.