The pituitary gland is located below the brain in a depression (fossa) of the sphenoid bone known as the sella turcica.
Crossing the under surface of the sphenoid, the sphenopalatine artery ends on the nasal septum as the posterior septal branches.
It is one of two foramina in the greater wing of the sphenoid bone.
Then the surgeon slides the endoscope into the nasal choana until the sphenoid ostium is found.
Adenomas greater than 10mm (macroadenomas) can cause remodeling of the underlying sphenoid bone altering the shape of the sella turcica.
It carries sensory information from the sphenoid sinus and posterior ethmoidal air cells.
The sphenoid bone is one of the seven bones that articulate to form the orbit.
In the dog the sphenoid is represented by 8 bones: basisphenoid, alisphenoids, presphenoid, orbitosphenoids, pterygoids.
