Which bone is involved in swallowing?

The hyoid bone is the only bone that does not articulate directly with any other bone. It serves as the attachment point for the muscles of the floor of the mouth, tongue, and pharynx, and plays a central role in swallowing (deglutition) by elevating during the pharyngeal phase. The suprahyoid and infrahyoid muscles coordinate the superior and anterior movement of the hyoid during swallowing.