What is the only bone in the human body that is not connected to any other bone?

https://www.youtube.com/watch?v=SPefcFm3lEY

What is the only bone in the human body that is not connected to any other bone?

The only bone in the human body that is not connected to any other bone is the hyoid bone.

This U-shaped bone is located in the neck, situated above the thyroid cartilage and below the lower jaw. It’s unique because it is suspended by muscles and ligaments rather than articulating with other bones. Its primary function is to serve as an anchor for the tongue and for muscles in the floor of the mouth, playing a vital role in swallowing and speech.

Source:

https://www.youtube.com/watch?v=SPefcFm3lEY

https://www.threads.com/@beliproduk.official/post/DPELSOgksat