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sphenoidotomy sphe·noid·ot·o·my (sfē’noi-dŏt’ə-mē)
Surgical creation of an opening in the anterior wall of the sphenoidal sinus.


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  • Sphenopalatine artery

    sphenopalatine artery sphe·no·pal·a·tine artery (sfē’nō-pāl’ə-tīn’) n. An artery with origin in the maxillary artery, with distribution to the nasal wall and septum, and with anastomoses to the branches of the descending palatine, superior labial, and infraorbital arteries.

  • Sphenopalatine foramen

    sphenopalatine foramen n. The opening formed from the sphenopalatine notch of the palatine bone in articulation with the sphenoid bone.

  • Sphenopalatine ganglion

    sphenopalatine ganglion n. See pterygopalatine ganglion.

  • Sphenoparietal sinus

    sphenoparietal sinus sphe·no·pa·ri·e·tal sinus (sfē’nō-pə-rī’ĭ-təl) n. A paired sinus of the dura mater that begins on the parietal bone and empties into the cavernous sinus.

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