Orbital gyrus

orbital gyrus n.
Any of the small, irregular convolutions on the concave inferior surface of each frontal lobe of the cerebrum.


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  • Orbital-index

    noun, Craniometry. 1. the ratio of the maximum breadth to the maximum height of the orbital cavity multiplied by 100.

  • Orbital muscle

    orbital muscle n. A rudimentary nonstriated muscle, crossing the infraorbital groove and the sphenomaxillary fissure and united with the periosteum of the eye socket.

  • Orbital plane

    orbital plane n. The orbital surface of the maxilla that lies perpendicular to the Frankfort plane at the orbitale.

  • Orbital process

    orbital process n. The anterior and larger of the two processes at the upper extremity of the vertical plate of the palatine bone, articulating with the upper jawbone and the ethmoid and sphenoid bones.

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