basioccipital bone
One of the bones of the occiput, the part of the skull which articulates with the spine. The basioccipital is located (if present) ventral to the foramen magnum. It often rests on or articulates with the basisphenoid, as well as meeting the exoccipitals. The basioccipital usually forms most (sometimes all) of the occipital condyle(s) and the ventral margin of the foramen magnum.
Exact Synonyms
basi-occipital
basilar part of occipital bone
basioccipital bone
basioccipital
Related Synonyms
pars basilaris ossis occipitalis
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class Information
axiom_lost_from_external_ontology
- relationship loss: overlaps parasphenoid-basioccipital joint (TAO:0001832)[TAO]
- relationship loss: overlaps basioccipital-exoccipital joint (TAO:0002038)[TAO]
- relationship type change: overlaps neurocranium (TAO:0001580) CHANGED TO: part_of neurocranium (neurocranium)[TAO]
editor note
TODO - check FMA
external_comment
In some teleosts the anterior vertebral centra fuse to the basioccipital forming a monopartite occipital condyle.[TAO]
external_definition
- An unpaired medial bone contributing to the ventral margin of the foramen magnum that extends into the floor of the brain cavity. It can contribute to the centromedial portion of the occipital condyle.[AAO]
- Chondral bone that articulates with the exoccipitals dorsally, the prootics anteriorly, the parasphenoid ventrally, and the first free vertebra posteriorly. The basioccipital forms the floor of the foramen magnum. The basioccipital is an unpaired medial bone.[TAO]
has_dbxref
has_obo_namespace
uberon
class Relations
Equivalent to
Subclass of
Related from
connects
has muscle insertion
has potential to develop into