Which of the following is not part of the skull? - Sphenoid bone - Occipital bone - Ethmoid bone - Hyoid bone

Answer

The correct answer is the Hyoid bone. The human skull is composed of cranial and facial bones. The sphenoid, occipital, and ethmoid bones are all primary components of the cranium. The hyoid bone, while located in the neck region between the chin and the thyroid cartilage, is considered a separate bone and is typically classified as part of the axial skeleton but not part of the skull itself because it does not articulate directly with any other bone in the skull.