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The glabella, in humans, is the area of skin between the eyebrows and above the nose. The term also refers to the underlying bone that is slightly depressed, and joins the two brow ridges . It is a cephalometric landmark that is just superior to the nasion .
The nasion (/ ˈ n eɪ z i ɒ n /) is the most anterior point of the frontonasal suture that joins the nasal part of the frontal bone and the nasal bones. It marks the midpoint at the intersection of the frontonasal suture with the internasal suture joining the nasal bones. [ 1 ]
Cephalometric analysis depends on cephalometric radiography to study relationships between bony and soft tissue landmarks and can be used to diagnose facial growth abnormalities prior to treatment, in the middle of treatment to evaluate progress, or at the conclusion of treatment to ascertain that the goals of treatment have been met. [5]
The nasal root is above the bridge and below the glabella, forming an indentation known as the nasion at the frontonasal suture where the frontal bone meets the nasal bones. [16] The nasal dorsum also known as the nasal ridge is the border between the root and the tip of the nose, which in profile can be variously shaped. [17]
It is located 2–3 centimeters lateral to the midline (at approximately the mid-pupillary line) and approximately 11 cm posterior to the nasion, or 10 cm posterior from the glabella. [1]
Naomi Osaka's second-round match at the Australian Open could not possibly have started in a worse way. Osaka strode to the sideline for the changeover, plopped herself down and draped a white ...
2026 Honda Passport vs. 2025 Toyota 4Runner: Comparing Mid-Size SUVs. Joe Lorio. January 6, 2025 at 8:30 AM. 2026 Honda Passport vs. 2025 Toyota 4Runner Toyota, Honda.
The internal surface of the squamous part is concave and presents in the upper part of the middle line a vertical groove, the sagittal sulcus, the edges of which unite below to form a ridge, the frontal crest; the sulcus lodges the superior sagittal sinus, while its margins and the crest afford attachment to the falx cerebri.