The suture that connects the two parietal bones together is called the sagittal suture. This suture runs along the midline of the skull, separating the left and right parietal bones. It is one of the major sutures in the human skull and plays a crucial role in the growth and development of the skull during childhood.
The sagittal suture is a type of fibrous joint known as a synarthrosis, which means it is immovable. This immobility is essential for providing stability and protection to the brain. Over time, as a person ages, the sagittal suture may begin to fuse, a process known as cranial synostosis.
Understanding the structure and function of the sagittal suture is important in fields such as anatomy, anthropology, and medicine, particularly in the study of skull development and the diagnosis of cranial abnormalities.