part of part of in taxon has developmental contribution from has developmental contribution from Aves manual digit manual digit 3 mesenchyme manual major digit (Aves) Hypothesized to be homologous to manual digit 2 of other tetrapods manual major digit UBERON:0012261 digit II(CIII) of manus digit II of manus wing digit II wing digit 3 (embryonic) A manual digit found in Aves that is morphologically similar to digit 2 in the standard tetrapod configuration and develops from embryonic digit 3. wing digit 2 (adult) manual major digit (Aves) plus metapodial segment