Nasion lies at the junction of
The nasion is the point where the internasal and frontonasal sutures meet. It lies a little above the floor of the depression at the root of the nose, below the glabella. Nasion is termed as the central point of the frontonasal suture. Ref: BD Chaurasia's HUMAN ANATOMY, Volume 3, 4th edition.
Frontonasal and internasal suture
Frontonasal and interparietal suture
Frontonasal and frontozygomatic suture
Frontogomatic and internasal suture
Head and neck