10- Suprahyoid Muscles

Question 1

What are Suprahyoid Muscles?

Answer 1

Muscles that help for floor of oral cavity, anchor tongue, elevate hyoid, and move larynx superiorly during swallowing; lie superior to hyoid bone.

Question 2

Digastric

Answer 2

2 bellies united by an intermediate tendon, forming a V shape under the chin.

Acting in concert, the digastric muscles elevate hyoid bone. Open mouth and depress mandible.

Question 3

Stylohyoid

Answer 3

Below angle of jaw, parallel posterior belly of diagastric muscle.

Elevates and retracts hyoid, thereby elongating floor of mouth during swallowing.

Question 4

Mylohyoid

Answer 4

Flat, triangular muscle just deep to digastric muscle; this muscle pair forms a sling that forms the floor of the anterior mouth.

Elevates hyoid bone and floor of mouth, enabling tongue to exert backward and upward press that forces food bolus into pharynx.

Question 5

Geniohyoid

Answer 5

Runs from chin to hyoid bone deep to mylohyoid.

Pulls hyoid bone superiorly and anteriorly, shortening floor of mouth and widening pharynx for receiving food.