The cranial structure refers to the framework of bones that encase and protect the brain. It consists of 22 bones, which are divided into two main groups: the cranial bones and the facial bones. The cranial bones include the frontal, parietal, temporal, occipital, sphenoid, and ethmoid bones, while the facial bones comprise structures like the maxilla and nasal bones. These bones are interconnected by joints called sutures, which allow for slight movement during growth and development. The cranial structure not only safeguards the brain but also supports the face and provides attachment points for muscles involved in chewing and facial expressions.