Ronda Rousey Breaks Finger Shooting '911' Scene, Fights Through the Pain!

Ronda Rousey is so tough, she BROKE HER FINGER on the set of the "911" TV show -- BUT NEVER BROKE CHARACTER!!! Ronda -- who plays an L.A. Fire Dept. bad ass on the show -- was shooting a scene in Mexico last week in which she was supposed to slam a…