What is the most anterior point of the fronto-nasal suture in the median plane?

The most anterior point of the fronto-nasal suture in the median plane is the Nasal (N) point. The nasion is defined as the junction where the frontal bone meets the two nasal bones, making it the most prominent and anterior location along this suture line. In cephalometric analysis, accurate identification of landmarks like the nasion is crucial for assessing craniofacial relationships, as it plays a significant role in determining facial dimensions and proportions.

Other anatomical points mentioned, such as the anterior nasal spine and glabella, are important in craniofacial measurements but do not represent the anterior point of the fronto-nasal suture. The anterior nasal spine is located more inferiorly and is associated with the maxilla, while the glabella refers to the smooth area between the eyebrows above the nasion, thus lying at a different cranial level. Point B is a landmark related to the contour of the mandible and is not relevant to the suture. Understanding the positioning of these points helps in interpreting cephalometric radiographs accurately.