How does the top of a human skull look?

The top of a human skull, known as the calvaria, is dome-shaped and composed of several bones, primarily the frontal, parietal, and occipital bones. It features sutures, which are jagged seams where these bones meet. The surface is generally smooth, with slight ridges and depressions that accommodate the brain's contours. Overall, it has a rounded appearance, protecting the brain while providing structural support.