Atlas · reference
The anatomy, structure by structure
The atlas is an instrument: a real reference skull you spin, explode and select. This is the same anatomy written out, one page per structure, so it can be read, linked, quoted and cited. 64 entries. Each one says what the structure is, how the Codex reads it, what the safety anatomy around it is, and which study the numbers came from.
Codex territories 13
The regions the BUILD sequence works in, at the public altitude: what the region is and what governs it, never how it is entered.
Base · the OGEE Curve
The lateral midface over the zygomatic body and arch and the submalar region below it.
Detail · forehead
The frontal plane, midline and paramedian, only where recessed or over-convex.
Detail · labiomental crease
The crease between the lower lip and the chin, across the midline.
Detail · lips
Within the vermilion border.
Detail · marionette
The peri-commissural region below the corner of the mouth.
Detail · nose
The dorsal midline from the radix down the nasal take-off.
Detail · tear trough
The true pre-orbital hollow, medial, below the orbital fat.
Detail · temple
The temporal fossa lateral to the orbital rim.
Install · gonial width
The ramus at the angle: a width intervention that improves the bigonial-to-bizygomatic ratio.
Install · the chin anchors
The symphysis between the two mental foramen columns: chin length and chin projection.
Install · the pre-jowl
The mandibular body between the chin and the antegonial notch, where bony resorption lets the border dip in front of the jowl.
Link · the Jawline Silhouette
A shadow at the angle and a line along the mandibular border toward the pre-jowl.
Uplift · the Forward Arc
The anterior midface: from below the orbital rim, medial to the malar eminence, down to the pyriform shelf beside the alar base.
Planes and angles 8
The measurements READ uses, each with the study its numbers come from.
Bizygomatic and bigonial widths
Farkas' North American white young adult norms: face width (zygion to zygion) 139.1 mm in men, mandible width (gonion to gonion) 97.1 mm, a ratio near 0.70 by caliper on the living face.
Gonial angle
The angle at the gonion between the posterior ramus and the mandibular plane.
Labiomental angle
Lower lip, labiomental fold, soft-tissue pogonion.
Nasofrontal angle
Glabella, nasion, nasal tip.
Nasolabial angle
Columella, subnasale, upper lip.
Ricketts' E-line
From the nasal tip to the soft-tissue pogonion.
True vertical
A vertical through the subnasale with the head in natural position (Arnett and Bergman).
Vertical thirds
Trichion to glabella, glabella to subnasale, subnasale to menton.
Bone 15
The skeleton the male face is read and built on.
Ethmoid
The medial orbital wall (lamina papyracea) and the roof of the nasal cavity, seen through the orbits.
Frontal bone
The forehead and the roof of both orbits.
Hyoid bone
The free bone of the neck suspended below the mandible.
Inferior nasal concha
The lowest turbinate on the lateral nasal wall, visible through the pyriform aperture.
Lacrimal bone
A thin plate in the anterior medial orbital wall holding the lacrimal sac; the medial canthal tendon anchors nearby.
Mandible
The lower jaw: a horseshoe body carrying the teeth, two vertical rami ending in the condyles, and the angle between them at the gonion.
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.
Nasal bones
Two small plates forming the upper third of the nasal dorsum, meeting the frontal bone at the nasion and ending inferiorly at the rhinion, where the cartilaginous dorsum takes over.
Occipital bone
The back and base of the skull.
Palatine bone
The back of the hard palate and part of the nasal cavity wall, seen through the pyriform aperture.
Parietal bone
The paired bones of the cranial vault above the temporal line.
Sphenoid bone
The keystone of the cranial base, seen in the atlas through the orbits as the greater wing forming the lateral orbital wall and the deep floor of the temporal fossa.
Temporal bone
The side of the skull: the squamous part under the temporalis, the zygomatic process completing the arch, the external acoustic meatus and the mastoid behind it.
Vomer
The bony posterior part of the nasal septum, seen through the pyriform aperture.
Zygomatic bone
The cheekbone: the malar eminence, the lateral orbital rim and floor, and the temporal process that runs back as the zygomatic arch to meet the temporal bone.
Vessels 6
The arterial anatomy that makes injecting a clinical act rather than a technique.
Angular artery
The terminal facial artery beside the nose, from the alar base to the medial canthus, where it anastomoses with the dorsal nasal branch of the ophthalmic artery.
Facial artery
From the external carotid, curling around the inferior border of the mandible at the antegonial notch just anterior to the masseter, then running tortuously upward and forward past the corner of the mouth, along the nasolabial fold to the alar base, where it continues as the angular artery to...
Superficial temporal artery, frontal branch
The superficial temporal artery ascends in front of the tragus and divides; the frontal branch turns forward across the temple, most tortuous one to three centimetres above the arch, toward the lateral forehead.
Superior and inferior labial arteries
Branches of the facial artery running within the lips near the vermilion, usually submucosal or intramuscular, anastomosing across the midline.
Supraorbital and supratrochlear arteries
Branches of the ophthalmic artery emerging with their nerves at the orbital rim and running up the forehead.
Transverse facial artery
From the superficial temporal artery within the parotid, running forward below the zygomatic arch across the masseter.
Foramina 4
The bony exits. Marked before anything is done near them.
Infraorbital foramen
Exit of the infraorbital nerve and artery on the anterior maxilla.
Mental foramen
Exit of the mental nerve and artery from the mandibular body.
Supraorbital notch or foramen
Exit of the supraorbital nerve and artery at the orbital rim, on average about 22.7 to 25.2 mm from the midline.
Supratrochlear bundle
The supratrochlear nerve and artery emerging at the medial orbital rim, medial to the supraorbital exit; from the dataset's own geometry.
Nerves 3
The sensory nerves of the face and where they emerge.
Infratrochlear nerve
A branch of the nasociliary nerve emerging below the trochlea at the medial orbit, supplying the medial canthal skin.
Supraorbital nerve
The lateral branch of the frontal nerve, emerging at the supraorbital notch or foramen and running up the forehead with the supraorbital artery.
Supratrochlear nerve
The medial branch of the frontal nerve, emerging near the medial orbital rim and running up the forehead with the supratrochlear artery.
Retaining ligaments 4
The tethers between skin and skeleton that decide how a face folds.
Mandibular ligament
Osteocutaneous fibres from the parasymphyseal mandible to the skin, about a centimetre above the border, in front of the jowl.
Masseteric cutaneous ligaments
A line of fascial fibres along the anterior border of the masseter, from the zygoma down toward the mandibular body, holding the cheek to the masseter.
Orbital retaining ligament and tear trough ligament
The osteocutaneous ligaments along the orbital rim: the tear trough ligament medially and the orbital retaining ligament laterally, separating the lid from the cheek and forming the lid-cheek junction.
Zygomatic ligament (McGregor's patch)
Osteocutaneous fibres from the zygomatic arch and body to the skin, at the junction of arch and body; the fixed point the lateral cheek hangs from.
Muscles 2
The two that matter to the lower face and the temple.
Cartilage 3
Where the skeleton stops and the cartilaginous framework takes over.
Lower lateral (alar) cartilages
The paired cartilages of the nasal tip and alae.
Septal cartilage
The quadrangular cartilage of the nasal septum, carrying the mid dorsum below the rhinion and supporting the tip.
Upper lateral cartilages
The paired cartilages forming the middle third of the nasal sidewalls, fused to the septum at the dorsum.
Teeth 2
Shown to complete the arches.
Surface 4
The registered soft-tissue reference over the bone.
External ear
The auricle.
Eye
The globe (sclera, cornea, iris) and the tarsal plates of the lids, in the orbit of this reference head.
Face surface (reference)
A canonical face surface registered to this skull at six paired levels (nasion, eyes, subnasale, incisal edge, pogonion, menton) using published adult male soft-tissue thicknesses.
Hair and scalp
The scalp line of the reference head.
The architecture is public, the coordinates are not. These pages carry what the atlas carries and nothing more. Every one of them withholds entry points, landmark constructions, volumes and read-to-point routing. What is shown and what is withheld.