orbital tubercle (of zygomatic bone)

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or·bi·tal tu·ber·cle (of zygomatic bone)

[TA]
a small elevation on the orbital surface of the zygomatic bone, just within the orbital margin, about 1 cm below the zygomaticofrontal suture; attaches to the lateral check ligament, the lateral palpebral ligament, and the suspensory ligament of the eyeball.