The human skull is made of 29 bones, connected most often by ligaments and a movable temporomandibular joint (articulatio temporomandibularis). The bones of the skull, which make up the brain (neurocranium) and facial part (splanchnocranium), are divided into even and odd ones. The parietal bones are even and compose the cerebral part, its arch. In children, an anterior fontanelle (fonticulum anterior) is present between the parietal and frontal bones. Therefore, it is at the midline of the skull, at the intersection of the coronal suture, the sagittal suture and the frontal suture. The fontanelle is overgrown between 9 and 18 months.