Name
Pronunciation
(thy-ro-HI-oid)
Origin/Proximal Attachment
Oblique line of the thyroid cartilage
Insertion/Distal Attachment
Inferior border of body of hyoid bone
Action/Relevance
Depresses hyoid or elevates thyroid cartilage
Innervation
Hypoglossal nerve (CN XII)
Notes
A small, quadrilateral muscle appearing like an upward continuation of the Sternothyreoideus. It arises from the oblique line on the lamina of the thyroid cartilage, and is inserted into the lower border of the greater cornu of the hyoid bone.