Thyrohyoid

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The Thyrohyoid is a member of the Infrahyoid Group, which is composed of the:

• Sternohyoid
• Sternothyroid
• Thyrohyoid
• Omohyoid

ATTACHMENTS:

• The thyrohyoid attaches from the thyrohyoid cartilage to the hyoid bone.

ACTIONS:

• Depresses the hyoid bone.
• Flexes the neck at the spinal joints.
• Assists, via stabilization of the hyoid bone, depression of the mandible at the temporomandibular joints (TMJs).

NOTE: The thyrohyoid can be considered to be an upward extension of the sternothyroid.