Sternohyoid muscle

This video tutorial by Matt from Kenhub focuses on the sternohyoid muscle, part of the infrahyoid muscle group located under the hyoid bone. The tutorial covers the origin, insertion, and function of the sternohyoid muscle, highlighting its role in depressing the larynx. It also discusses the nerve supply from the cervical plexus and the collective function of infrahyoid muscles in positioning the hyoid bone and aiding in swallowing. The video concludes with an invitation to explore more anatomy resources on Kenhub.

Which muscle group is located under the hyoid bone and includes the sternohyoid muscle?

• Pectoral muscles

• Deltoid muscles

• Infrahyoid muscles

• Suprahyoid muscles

Where does the sternohyoid muscle originate?

• Scapula

• Dorsal surface of the manubrium and sternoclavicular joint

• Body of the hyoid

• Larynx

What is the primary function of the sternohyoid muscle?

• Elevates the larynx

• Rotates the head

• Depresses the larynx

• Flexes the neck

Which muscle elevates the larynx when the hyoid bone is fixed?

• Sternocleidomastoid

• Thyrohyoid

• Omohyoid

• Sternohyoid

What role do the infrahyoid muscles play in relation to the hyoid bone?

• They stabilize the shoulder

• They position the hyoid bone

• They assist in breathing

• They control facial expressions