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. [ http://en.wikipedia.org/wiki/Basilar_part_of_occipital_bone http://palaeos.com/vertebrates/glossary/glossaryB.html ]

This is just here as a test because I lose it

Term information

Subsets

uberon_slim, pheno_slim, vertebrate_core

axiom lost from external ontology
  • relationship loss: overlaps basioccipital-exoccipital joint (TAO:0002038)[TAO]
  • relationship loss: overlaps parasphenoid-basioccipital joint (TAO:0001832)[TAO]
  • relationship type change: overlaps neurocranium (TAO:0001580) CHANGED TO: part_of neurocranium (UBERON:0001703)[TAO]
definition
  • 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.
depicted by
  • http://upload.wikimedia.org/wikipedia/commons/c/c4/Parsbasilaris%28young%29.PNG
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
  • 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]
  • 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]
has exact synonym
  • basilar part of occipital bone
  • basioccipital
  • basi-occipital
  • basioccipital bone
has related synonym
  • pars basilaris ossis occipitalis
id
  • UBERON:0001692