MORE INFO:

The skull consists of 22 bones in most adult specimens, and these bones come together via cranial sutures. The function of the skull is both structurally supportive and protective. The skull will harden and fuse through development to protect its inner contents: the cerebrum, cerebellum, brainstem, and orbits.

SOURCE:

https://www.ncbi.nlm.nih.gov/books/NBK499834/#:~:text=The%20skull%20consists%20of%2022,cerebellum%2C%20brainstem%2C%20and%20orbits.