A manual digit found in Aves that is the most preaxial position and is morphologically similar to digit 1 in the standard tetrapod configuration and develops from embryonic digit 2, with contributions from embryonic digit 1. [ https://github.com/obophenotype/uberon/issues/247 http://www.ncbi.nlm.nih.gov/pubmed/10220427 https://github.com/obophenotype/uberon/issues/264 PhenoscapeRCN:Oct2012 ]
Term information
Hypothesized to be homologous to manual digit 1 of other tetrapods. Develops from the embryonic digit that is positionally the 2nd, with contributions from the 1st
digit I(CII) of manus
wing digit 1 (adult)
digit I of manus
wing digit I
wing digit 2 (embryonic)
Term relations
- manual digit
- has developmental contribution from some manual digit 1 mesenchyme
- preaxialmost_part_of some manus
- has developmental contribution from some manual digit 2 mesenchyme
- part of some alular digit plus metapodial segment