On our CodyCross answers based website we have the solution for Muscles on the back of arms, opposite the biceps. CodyCross game includes different missions and events which update daily so you can earn tokens that are mostly needed to help with answers for challenging clues. Now let's focus on the answer you need for Muscles on the back of arms, opposite the biceps by scrolling down which is part of CodyCross Therapeutic Art Group Puzzle 20.