The Eastern Catholic Churches are 23 self-governing particular churches in full communion with the Pope. Together with the Latin Church, also known as the Western Church, they make up the Catholic Church.  Liturgies of the 23 Eastern Catholic churches include the Byzantine, Alexandrian, Armenian, East Syrian, and West Syrian Rites, traditions that are shared with other Eastern Christian churches with which they were once associated, such as the Eastern Orthodox and Oriental Orthodox churches. Although some theological issues divide them from other Eastern churches, they admit members of the latter churches to the Eucharist and the other sacraments, as governed by canon law.