Bone
Frontal bone
The forehead and the roof of both orbits. The glabella is its most prominent midline point above the nasion; the supraorbital notch or foramen on each rim carries the supraorbital nerve and artery, with the supratrochlear bundle emerging medially.
What it is
The forehead and the roof of both orbits. The glabella is its most prominent midline point above the nasion; the supraorbital notch or foramen on each rim carries the supraorbital nerve and artery, with the supratrochlear bundle emerging medially.
How the Codex reads it
Detail's forehead region sits here, deep on bone, only where the profile is recessed or over-convex, and always to read supported rather than projected: the flatter male forehead is preserved. READ item A5 reads the forehead and temple; A2 reads the nasofrontal angle.
Safety anatomy
The supraorbital and supratrochlear vessels emerge here and run up the forehead; the glabella is a high-risk territory for intravascular events because of the anastomoses with the ophthalmic system.
Questions
What is the frontal bone?
The forehead and the roof of both orbits. The glabella is its most prominent midline point above the nasion; the supraorbital notch or foramen on each rim carries the supraorbital nerve and artery, with the supratrochlear bundle emerging medially.
How does the Band Codex read the frontal bone?
Detail's forehead region sits here, deep on bone, only where the profile is recessed or over-convex, and always to read supported rather than projected: the flatter male forehead is preserved. READ item A5 reads the forehead and temple; A2 reads the nasofrontal angle.
What is the safety anatomy around the frontal bone?
The supraorbital and supratrochlear vessels emerge here and run up the forehead; the glabella is a high-risk territory for intravascular events because of the anastomoses with the ophthalmic system.
Sources
- Morphometry of the supraorbital notch and foramen, combined cadaveric and dry-skull study, 66 orbits. 2025.Mean 25.24 ± 3.78 mm from the midline to the foramen and 22.69 mm to the notch.
Every number in this atlas cites the study it came from. The full method, including what this site withholds on purpose, is on sources and method.
This site teaches one level above the Codex's working manual: the architecture is public, the coordinates are not. This page withholds entry points, landmark constructions, volumes and read-to-point routing, exactly as the atlas does. What is shown and what is withheld.