A proximal tarsal bone resulting from fusion of intermedium and fibulare. [ http://en.wikipedia.org/wiki/Talus_bone http://orcid.org/0000-0002-6601-2165 ]
Term information
- MESH:D013628
- GAID:196
- BTO:0002354
- SCTID:182098005
- UMLS:C0039277 (ncithesaurus:Talus)
- Wikipedia:Talus_bone
- NCIT:C52799
- MA:0001351
- galen:Talus
- FMA:9708
- EMAPA:19135
uberon_slim, pheno_slim, human_reference_atlas
astragalus
astragaloid bone
os tarsi tibiale
astragalus bone
major ankle bone
os trigonum
The talus is apparently derived from the fusion of three separate bones in the feet of primitive amphibians; the tibiale, articulating with tibia, the intermedium, between the bases of the tibia and fibula, and the fourth centrale, lying in the mid-part of the tarsus. These bones are still partially separate in modern amphibians, which therefore do not have a true talus. The talus forms a considerably more flexible joint in mammals than it does in reptiles. This reaches its greatest extent in artiodactyls, where the distal surface of the bone has a smooth keel to allow greater freedom of movement of the foot, and thus increase running speed
Term relations
- proximal tarsal bone and derived from ancestral fusion of some hindlimb intermedium bone and derived from ancestral fusion of some fibulare