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optic canal |
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optic canal [′äp·tik kə′nal] (anatomy) The channel at the apex of the orbit, the anterior termination of the optic groove, just beneath the lesser wing of the sphenoid bone; it gives passage to the optic nerve and ophthalmic artery. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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| A sign of meningioma originating in the optic canal. Computed tomography (CT) detected soft-tissue density in the left orbital apex and a widening of the left bony optic canal (figure 1). We meticulously dissected 65 embalmed cadaver adult half-heads and attempted to identify an optic canal bulge in each with a nasal endoscope. |
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