Muscles
Masseter
From the lower border of the zygomatic arch to the lateral ramus and angle of the mandible. Its anterior border is where the facial artery crosses the jaw and where the masseteric ligaments run.
What it is
From the lower border of the zygomatic arch to the lateral ramus and angle of the mandible. Its anterior border is where the facial artery crosses the jaw and where the masseteric ligaments run.
How the Codex reads it
Its medial margin is a landmark at the angle; the shadow Link casts at the angle sits in the superficial plane over it, never deep on the ramus, which is Install's width territory.
Questions
What is the masseter?
From the lower border of the zygomatic arch to the lateral ramus and angle of the mandible. Its anterior border is where the facial artery crosses the jaw and where the masseteric ligaments run.
How does the Band Codex read the masseter?
Its medial margin is a landmark at the angle; the shadow Link casts at the angle sits in the superficial plane over it, never deep on the ramus, which is Install's width territory.
Sources
- The Evaluation of Facial Artery Position in Relation to Soft Tissue Pogonion and Soft Tissue Gonion: A Cadaver Study. Journal of Craniofacial Surgery, 2025.60 fresh-frozen cadavers: the crossing lies at about 32 per cent of the mandibular length from the gonion, a proportion independent of jaw size.
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.