It requires approximately 1,100 pounds of force to fracture a human skull at its weakest points, which are located around the temples. As the human skull is so resistant to outside forces, it is much more likely for an individual to suffer serious head injuries from intracranial pressure.
Most individual bones of the skull are joined together by sutures, which are immovable joints that grow together through ossification. The exception is the mandible. Although some sources disagree on the exact number of bones in the human skull, it is generally agreed that the total is 22. At birth, this figure is doubled before the bony elements begin to fuse together during growth. Male skulls are more robustly built than female skulls and have approximately 10 percent more cranial capacity.