Bone
Maxilla
The paired upper-jaw bone: the floor of the orbit, the lateral wall of the nasal (pyriform) aperture, the anterior nasal spine, the alveolar process carrying the upper teeth, and the infraorbital foramen on its anterior face below the orbital rim.
What it is
The paired upper-jaw bone: the floor of the orbit, the lateral wall of the nasal (pyriform) aperture, the anterior nasal spine, the alveolar process carrying the upper teeth, and the infraorbital foramen on its anterior face below the orbital rim.
How the Codex reads it
Uplift works on this bone: the anterior midface projected forward, not up, from bone-deep support below the orbital rim to the pyriform shelf beside the nose. Its two anti-feminisation axes are checked here: the apple of the cheek must not project ahead of the pyriform plane, and must not enlarge on animation. READ item A3 reads the anterior projection and the lid-cheek junction; A2 reads the nasolabial angle.
Safety anatomy
The infraorbital foramen sits below the rim in the mid-pupillary line; the angular artery's course beside the nose is variable. Bone-deep placement is the safeguard the Codex relies on in this territory.
Questions
What is the maxilla?
The paired upper-jaw bone: the floor of the orbit, the lateral wall of the nasal (pyriform) aperture, the anterior nasal spine, the alveolar process carrying the upper teeth, and the infraorbital foramen on its anterior face below the orbital rim.
How does the Band Codex read the maxilla?
Uplift works on this bone: the anterior midface projected forward, not up, from bone-deep support below the orbital rim to the pyriform shelf beside the nose. Its two anti-feminisation axes are checked here: the apple of the cheek must not project ahead of the pyriform plane, and must not...
What is the safety anatomy around the maxilla?
The infraorbital foramen sits below the rim in the mid-pupillary line; the angular artery's course beside the nose is variable. Bone-deep placement is the safeguard the Codex relies on in this territory.
Sources
- Anatomic characteristics of the infraorbital foramen: a cadaver study. Journal of Oral and Maxillofacial Surgery, 2000.47 subjects, 94 sides: 8.5 ± 2.2 mm below the inferior orbital rim in men, 27.7 ± 4.3 mm from the facial midline.
- 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.