part of part of in lateral side of develops from develops from contributes to morphology of composed primarily of sphenoid bone orbitosphenoid http://upload.wikimedia.org/wikipedia/commons/3/35/Gray145.png FMA:52869 MA:0002773 relationship loss: overlaps orbitosphenoid-lateral ethmoid joint (TAO:0001941)[TAO] VHOG:0001153 Large median unpaired cartilage bone consisting of two diverging plates. Positioned medial to the eye. The orbitosphenoid develops from the Trabeculae communis and forms the anterior and anterolateral boundary of the orbital foramen and constitutes a significant part of the sidewalls and floor of the cranial cavity. Bordered by the lateral ethmoid anteriorly, and the pterosphenoid posteriorly, The orbitosphenoid may extend ventrally to meet the parasphenoid. In the adult, the orbitosphenoid is fused ventrally to the parasphenoid via a thin sheet of bone.[TAO] relationship loss: overlaps pterosphenoid-orbitosphenoid joint (TAO:0001831)[TAO] Endochondral ossification of the lateral sides of the braincase.[AAO] alae parvae EMAPA:18719 TAO:0000253 orbitosphenoids ingrassia's process relationship loss: overlaps orbitosphenoid-prootic joint (TAO:0001794)[TAO] The bone that is situated in the orbit on either side of the presphenoid; it generally forms a part of the sphenoid in the adult, and may be independent in the young. relationship loss: part_of braincase and otic capsule skeleton (AAO:0000052)[AAO] ala minor (os sphenoidale) SCTID:361737003 lesser wing of sphenoidal bone ala minor ossis sphenoidalis Wikipedia:Lesser_wing_of_sphenoid_bone AAO:0000345 lesser wing of sphenoid relationship loss: develops_from taenia marginalis anterior (TAO:0001505)[TAO] ZFA:0000253 orbitosphenoid bone UBERON:0002478 lesser wing of sphenoid bone relationship type change: overlaps neurocranium (TAO:0001580) CHANGED TO: part_of neurocranium (UBERON:0001703)[TAO] relationship type change: overlaps neurocranium (TAO:0001580) CHANGED TO: develops_from neurocranium (UBERON:0001703)[TAO] bone tissue endochondral bone basicranium sphenoid region facial bone mesoderm-derived structure orbitosphenoid cartilage element orbitosphenoid ossification center neurocranium bone orbitosphenoid endochondral element lateral structure