出典:Wiktionary
出典:Wikipedia
出典:『Wikipedia』 (2010/12/26 10:00 UTC 版)
A coracoid is a paired bone which is part of the shoulder assembly in all vertebrates except therian mammals (therians = marsupials and placentals). In therian mammals (including humans), a coracoid process is present as part of the scapula, but this is not homologous with the coracoid bone of most other animals.