90stangfan

While switching batterys from my gt to my drop i did pay attention that the battery post were backwards from each car. So as i started to put the neg to the pos of course they arced and a minor spark came up and then i noticed my mistake. After putting the battery together right my starter wont work. check the fuses and the starter silenoid and there good and my fuel pump and relays are working. everything is working but the starter, what does this mean did i kill the starter?