the bone at the lower, posterior part of the skull [ MP:0005269 ISBN:0-683-40008-8 ]
术语信息
- MA:0001468
- NCIT:C12757
- FMA:52735
- UMLS:C0028784 (ncithesaurus:Occipital_Bone)
- SCTID:181796003
- GAID:227
- MESH:D009777
- EMAPA:25112
- Wikipedia:Occipital_bone
- OpenCyc:Mx4rwQtsiZwpEbGdrcN5Y29ycA
uberon_slim, pheno_slim
fusion of basi-, exo- and supra-occipitals (and maybe tabular)
formed from the sclerotome of the occipital somites. It is not present in living or fossil agnathans or cartilaginous fishes, but appears to have arisen in parallel in many bony fishes. Incorporation of the occipital ver- tebrae into the skull was associated with the annexation of the upper part of the spinal cord into the brain, together with the first 2 spinal nerves as cranial nerves XI and XII
术语关系
- neurocranium bone
- flat bone
- develops from some sclerotome
- part of some occipital region
- only in taxon some Teleostomi
- has part some (part of some chondrocranium)
- surrounds some foramen magnum
- has part some (part of some dermatocranium)