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3D OSTEOLOGY
3D VISCEROCRANIUM

ZYGOMATIC BONE ANATOMY

Zygomatic bone anatomy 360-degree interactive viewer showing cheekbone structure, diamond-shaped configuration, lateral surface, frontal process, temporal process, and orbital contributions

Zygomatic Bone - General Structure, Preview from the app. Download 3D OSTEOLOGY for full 3D control—multiple views, x-ray mode, and unlimited zoom.

TABLE OF CONTENTS

GENERAL CHARACTERISTICS

  • Paired facial bone with diamond-shaped configuration
  • Commonly referred to as the cheekbone
  • Creates the prominent contour of the cheek region
  • Contributes to:
    • Lateral orbital wall
    • Orbital floor
  • Provides stable support to facial framework
  • Facilitates facial expression movements
  • Offers protection to ocular structures

Articulations

Zygomatic bone articulations 360-degree viewer showing connections with frontal bone, sphenoid bone, maxilla, and temporal bone in disarticulated view

Zygomatic Bone - Articulations, Preview from the app. Download 3D OSTEOLOGY for full 3D control—multiple views, x-ray mode, and unlimited zoom.

  • Frontal bone
  • Sphenoid bone
  • Maxilla
  • Temporal bone

LATERAL SURFACE

Zygomatic bone lateral surface 360-degree viewer showing convex external aspect, zygomaticofacial foramen, and cheek contour

Zygomatic Bone - Lateral Surface, Preview from the app. Download 3D OSTEOLOGY for full 3D control—multiple views, x-ray mode, and unlimited zoom.

  • Convex and smooth external aspect
  • Constitutes the outer surface of the cheek

Zygomaticofacial Foramen

  • Small aperture on lateral surface
  • Transmits:
    • Zygomaticofacial nerve
    • Accompanying blood vessels
  • Supplies facial structures

FRONTAL PROCESS

  • Thin elongated bony projection
  • Extends in a superior direction
  • Articulates with frontal bone superiorly
  • Contributes to formation of lateral orbital wall
  • Provides attachment sites for facial musculature

Orbital Tubercle

  • Bony elevation on frontal process
  • Serves as attachment for lateral palpebral ligament
  • Provides insertion for orbicularis oculi muscle
  • Plays functional role in eyelid movement

TEMPORAL PROCESS

  • Projects in a posterior direction
  • Unites with zygomatic process of temporal bone
  • Together forms the zygomatic arch
  • Significant for attachment of masticatory muscles

TEMPORAL SURFACE

Zygomatic bone temporal surface 360-degree viewer showing concave inner aspect, zygomaticotemporal foramen, marginal tubercle, and temporal fossa contribution

Zygomatic Bone - Temporal Surface, Preview from the app. Download 3D OSTEOLOGY for full 3D control—multiple views, x-ray mode, and unlimited zoom.

  • Inner aspect oriented toward temporal bone
  • Concave in configuration
  • Contributes to:
    • Temporal fossa formation
    • Infratemporal fossa formation

Zygomaticotemporal Foramen

  • Opening on temporal surface
  • Transmits zygomaticotemporal nerve
  • Provides sensory supply to temple skin

Marginal Tubercle

  • Raised prominence
  • Located on posterior border of frontal process
  • Increases surface area for muscle attachment
  • Assists in articulation with neighboring bones

ORBITAL SURFACE

Zygomatic bone orbital surface 360-degree viewer showing lateral orbital wall contribution, orbital floor, zygomatico-orbital foramen, and smooth bony surface

Zygomatic Bone - Orbital Surface, Preview from the app. Download 3D OSTEOLOGY for full 3D control—multiple views, x-ray mode, and unlimited zoom.

  • Forms substantial portion of lateral orbital wall
  • Contributes to orbital floor
  • Provides protective covering for the eye
  • Smooth bony surface

Zygomatico-orbital Foramen

  • Aperture on orbital surface
  • Permits passage of zygomatic nerve branches
  • Opens into orbital cavity

BIBLIOGRAPHY

1. Henry G, Warren HL. Osteology. In: Anatomy of the Human Body. 20th ed. Philadelphia: Lea & Febiger; 1918. p. 129–97.

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