human_reference_atlas part of Homo sapiens sacral vertebra vertebral column fused sacrum http://upload.wikimedia.org/wikipedia/commons/e/ec/Gray95.png https://ccf-ontology.hubmapconsortium.org/objects/v1.2/VH_F_Pelvis.glb https://ccf-ontology.hubmapconsortium.org/objects/v1.2/VH_M_Pelvis.glb sacrum [sacral vertebrae I - V] SCTID:264186006 sacrum sacral bone the AAO class 'sacrum' is deliberately placed under 'sacral vertebra' rather than here CALOHA:TS-2201 A collection of sacral vertebrae in the sacral region that are fused and part of the bony pelvis. GAID:241 EFO:0003071 NCIT:C33508 galen:Sacrum sacral AS MESH:D012447 os sacrum os sacrum [vertebrae sacrales I - V] uberon UBERON:0003690 sacrum Wikipedia:Sacrum FMA:16202 sacrum [sacral vertebrae I-V] sacrum axial skeleton plus cranial skeleton subdivision of vertebral column irregular bone