What bone in the human body functions freely without any other bones?
The hyoid bone (Lingual Bone) is a bone in the neck, and is the only bone in the human skeleton not articulated to any other bone. It is supported by the muscles of the neck and in turn supports the root of the tongue. The hyoid bone is shaped like a horseshoe, and is suspended from the tips of the styloid processes of the temporal bones by the stylohyoid ligaments.
