Poser comes with a male and a female skeleton. There are no skeletal figures with muscles attached included with the program. There's a texture by Preston in Free Stuff for the default Poser man that shows all the muscles, but the figure will have the Poser man's head, feet and hands. I know of no skeleton/muscle figure for Poser, but I'm not the expert as to what all is out there. You can animate figures in Poser, though I'm not sure offhand how you would get muscles to highlight. Mike