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 [ ISBN:0-683-40008-8 MP:0004457 ]
术语信息
- MA:0002773
- VHOG:0001153
- Wikipedia:Lesser_wing_of_sphenoid_bone
- ZFA:0000253
- FMA:52869
- SCTID:361737003
- TAO:0000253
- EMAPA:18719
- AAO:0000345
pheno_slim, vertebrate_core
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]
Endochondral ossification of the lateral sides of the braincase.[AAO]
relationship loss: overlaps pterosphenoid-orbitosphenoid joint (TAO:0001831)[TAO]
relationship loss: overlaps orbitosphenoid-prootic joint (TAO:0001794)[TAO]
relationship loss: develops_from taenia marginalis anterior (TAO:0001505)[TAO]
relationship loss: overlaps orbitosphenoid-lateral ethmoid joint (TAO:0001941)[TAO]
relationship type change: overlaps neurocranium (TAO:0001580) CHANGED TO: develops_from neurocranium (UBERON:0001703)[TAO]
relationship loss: part_of braincase and otic capsule skeleton (AAO:0000052)[AAO]
relationship type change: overlaps neurocranium (TAO:0001580) CHANGED TO: part_of neurocranium (UBERON:0001703)[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
ingrassia's process
ala minor (os sphenoidale)
lesser wing of sphenoid
orbitosphenoid bone
lesser wing of sphenoidal bone
ala minor ossis sphenoidalis
术语关系
- orbitosphenoid endochondral element
- lateral structure
- neurocranium bone
- endochondral bone
- facial bone
- mesoderm-derived structure
- contributes to morphology of some sphenoid bone
- in lateral side of some basicranium
- develops from some orbitosphenoid ossification center
- part of some sphenoid bone
- develops from some orbitosphenoid cartilage element