Individual Readiness Assurance Test (iRAT) 4 Head And Neck Practice Test

The structure that anchors the tongue to the floor of the mouth is the

Lingual frenulum Genioglossus Mylohyoid Hyoglossus

Correct Answer:

Lingual frenulum

Explanation:

The tongue is anchored to the floor of the mouth by a thin mucous membrane fold called the lingual frenulum. This fold runs from the underside of the tongue to the floor of the mouth, securing the tongue in place and helping limit excessive forward movement. It also plays a role in activities like sucking and swallowing by stabilizing the tongue during those motions. The other structures are muscles or floor-forming tissues with different roles. The genioglossus is a major tongue muscle that protrudes and depresses the tongue. The hyoglossus depresses and retracts the tongue. The mylohyoid helps form and elevate the floor of the mouth during swallowing, but it does not serve as the fixed anchor between the tongue and the floor.

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