Jesus chose some men for the role of 'apostles.'  No mention of Jesus making priests.  The 12 and the 70 (or 72) were both appointed for the same mission, same Greek verb appointed.  You can see some of the 70 are present at the Last Supper (compare Luke 22:35 and Luke 10:1-4). The key is who is without "purse, bag, sandals." It is the 70. For the 12, it is a different set of accoutrements. Not likely that among the 70 and among the 120 (Pentecost) and at the Last Supper there were no women and it was strictly a boys club.  The apostle Junia, a woman who was in Christianity before Paul (Romans 16:7), may have been one of the 70 apostles  -- in the Eastern Church the 70 are called apostles.  There were women deacons and women presbyters and women bishops in the early Church.  In the earliest days of the Church there were no priests.  Instead, there was a 'priesthood of all believers' (Revelation and 1Peter).  Jesus said 'do this in memory of me' to all apostles and disciples present.