Which bone is involved in swallowing?

Correct answer: D. Hyoid bone

• A. The palatine bone forms the posterior hard palate and part of the orbital floor — it is not the primary bone involved in swallowing mechanics.
• B. The temporal bone houses the middle ear and TMJ — it is not directly involved in the mechanics of swallowing.
• C. The sphenoid bone forms part of the skull base — it is not directly involved in the mechanics of swallowing.
• D. The HYOID BONE is the only bone in the body that does not articulate with any other bone — it is entirely suspended by muscles and ligaments. It serves as an attachment point for the suprahyoid muscles (responsible for elevating the larynx during swallowing), infrahyoid muscles, and tongue muscles. The superior movement of the hyoid during swallowing is essential to open the esophagus and protect the airway.