Sphenoid bone
noun
1.
the large butterfly-shaped compound bone at the base of the skull, containing a protective depression for the pituitary gland
sphenoid bone n.
A compound bone with winglike processes, situated at the base of the skull.
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- Sphenoid crest
sphenoid crest n. A vertical ridge in the midline of the anterior surface of the sphenoid bone.
- Sphenoiditis
sphenoiditis sphe·noid·i·tis (sfē’noi-dī’tĭs) n. Inflammation of the sphenoidal sinus. Necrosis of the sphenoid bone.
- Sphenoidotomy
sphenoidotomy sphe·noid·ot·o·my (sfē’noi-dŏt’ə-mē) n. Surgical creation of an opening in the anterior wall of the sphenoidal sinus.
- 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.