It's the hyoid bone! Anatomy. Its parts, where it is, what's nearby, what it's attached to and why it is sometimes considered an indicator of murder.
Daily Anatomy App:
For a random human anatomy question every day on your phone you can get my Daily Anatomy question app from the Apple App Store:
https://itunes.apple.com/gb/app/daily-anatomy/id1001729137
or Google Play Store:
https://play.google.com/store/apps/details?id=com.suanatomy.dailyanatomy
Music by Jahzzar
Album: HiFi City Tales
Song: Bodies
https://jahzzar.bandcamp.com