Therefore, "cranio" refers to anything related to the skull, including:
* Cranium: The bony structure of the head that encloses the brain.
* Cranial: Relating to the skull or the brain.
* Craniotomy: A surgical procedure that involves cutting into the skull.
* Craniosacral therapy: A type of alternative medicine that focuses on the skull and sacrum.
So, when you see "cranio" in a word, it likely has something to do with the skull or the brain.