JSON

distal carpal bone 2

Go to external page http://purl.obolibrary.org/obo/UBERON_0001431

Synonyms: distal carpal 2 trapezoid os trapezoideum lesser multangular bone trapezoid bone

This is just here as a test because I lose it

Term information

database cross reference
Subsets

uberon_slim, pheno_slim, human_reference_atlas

external definition

Small element that articulates with the prepollex, metacarpal II(I) and metacarpal III(II). It may be fused to element Y or carpal 3(2).[AAO]

The trapezoid bone (lesser multangular bone) is a carpal bone in tetrapods, including humans. It is the smallest bone in the distal row. It may be known by its wedge-shaped form, the broad end of the wedge constituting the dorsal, the narrow end the palmar surface; and by its having four articular facets touching each other, and separated by sharp edges. It is homologous with the 'second distal carpal' of reptiles and amphibians. The etymology derives from the Greek trapezion which means 'irregular quadrilateral,' from tra- 'four' and peza 'foot' or 'edge. ' Literally, 'a little table' from trapeza meaning 'table' and -oeides 'shaped.[Wikipedia:Trapezoid_bone]

has related synonym

manus distal carpal bone 2

lesser multiangular

carpal 2

lesser multangular

hand distal carpal bone 2

id

UBERON:0001431

present in taxon

http://purl.obolibrary.org/obo/NCBITaxon_9606

taxon notes

located in the distal part of the carpus and articulating with the second metacarpal, the distal carpals 1 and 2 and the radiale.[VSAO] in humans - The capitate articulates with 2nd metacarpal distally, scaphoid proximally, trapezium medially, capitate medially[WP] Amphibians: Small element that articulates with the prepollex, metacarpal II(I) and metacarpal III(II). It may be fused to element Y or carpal 3(2)