Would anyone know if there is such a thing as internal body parts that look like one of those medical look images. 
There are morphs for muscles, skeletons, but is there anywhere that has heart, liver, pancreas, stomach etc? 

I use Poser 7  and so far haven't been able to find anything anywhere.  
If I knew how to make my own I would but wouldn't know where to begin!! 
Is it hard to make props?  And what program would one need to do so?