Trochlear Spine of Frontal Bone Anatomy in 3D

A small bony projection or notch in the frontal bone for the pulley of the superior oblique muscle. Displacement or fracture can cause double vision (diplopia).

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Related structures

Frontal Bone Nasal Spine of Frontal Bone Frontal part of orbital margin Foramen Caecum of Frontal Bone Nasal Margin of Frontal Bone Nasal part of frontal bone Orbital part of frontal bone Orbital Plate of Frontal Bone