basisphenoid ba·si·sphe·noid (bā'sĭ-sfē'noid')
Of or relating to the base or body of the sphenoid bone.
Relating to or being the independent center of ossification in the embryo that forms the posterior portion of the body of the sphenoid bone.
The basi-occipital (fig. 93, 1) too is fused with the basisphenoid.
The basisphenoid is well ossified, and there is no parasphenoid.
The basisphenoid has on each side a well marked pterygoidal apophysis.
It is difficult to avoid injury to the pituitary body embedded in the basisphenoid bone.
It unites dorsally with the exoccipitals and anteriorly with the basisphenoid.
Dorsally the pterygoid articulates with the basisphenoid, quadrate, and alisphenoid.
The basisphenoid (fig. 45, 12) is an unpaired wedge-shaped bone, united along a deep vertical suture with the basi-occipital.
The basisphenoid appears on the surface immediately in front of the basi-occipital.
The skull lacks the basioccipital, basisphenoid, and left zygomatic arch.
The basisphenoid, which is fused with the parasphenoid, also forms a small part of the posteroventral margin of the optic foramen.