Cranial base

The cranial base refers to the inferior aspect of the skull. When viewed from above, it shows the cranial cavity, i.e. the internal surface of cranial base. You can find information about the bones forming the cranial cavity and the foramina within it, here: cranial cavity. When viewed from below, the cranial base represents the external surface of the skull’s lower part, also known as the norma basalis. For more information about the bones that form the normal basalis and the foramina located within the cranial base, you can visit this link: norma basalis.