APPENDIKS (az lot. appendix – zamima, zoid), kirmruda, izofai kirmshakli kurruda. A.-i odam 1 – 28 sm, qutrash 4 – 5 mm ast. Darozii A. bazan to 28 sm meshavad; darozii A.-i navzodon 3 – 5 sm, kudakoni 10 – 12-sola 9,5 sm ast. Dar baze holatho odam metavonad A. nadoshta boshad. Dar davrai pironsoli A. kutoh va atrofiya meshavad. Dar A. imkon dorad, ki parazithoi gunogun (mas., Balantidium coli, Entamoeba histolytica) va kirmho (kijjaho, askaridaho va g.) joy doshta boshand. Iltihobi A.-ro appenditsit menomand.