Crucifix = A reminder of a constantly dying Christ
Eucharist = broken body of Christ to be eaten (Christ didn't have a broken bone in his body when he was crucified)
Mass = No salvation outside of mass or the Catholic Church. Bible states otherwise...
You are limiting the definition of a broken body to "broken bones". The body is composed of much more than bones. It's also tissue and blood and water and nerves. Jesus' heart was pierced. His skin was broken by the whip. Although his bones were not broken like the thieves, one could conclude that they were at least "fractured" by the nails.
As mentioned above, in the eternal aspect, He is constantly dying. He is the eternal sacrifice. But for the sake of temporality, the crucifix is a reminder of the sacrifice, first and foremost.
There have been a lot of theories regarding the fact that some people are repelled by the site of the crucifix. Christ, like the serpent in the desert, was raised on a pole to heal the people. He, in mirroring the serpent of Exodus, became sin to bring us salvation. It's been said that those who do not want to look at the cross are really refusing to look at their sins crucified upon Calvary, thus the discomfort and preference for a cross without a corpus.