I dont know why more individuals havent rated this app but I guess they are scared to pay $2.99? Dont be. If youre going into the healthcare field then you already know how competitive it is. THIS HELPS! It actually includes more muscles than we learned in our anatomy class. These speed apps are great because they are a quick study tool anytime you are wasting time at a stoplight, in a grocery line, or at the DMV! I got an A in both of my AP classes and I can honestly say that Speed Anatomy has helped me out a great deal! Thanks guys!! :)