[aruanan]

I design computer based instruction for a living. I have seen some pretty neat disection simulations.

Yes, but unless you're actually dissecting something, you're just watching a fancy film strip, something on the order of Debbie Dissects Dallas.

[Huck]

unless you're actually dissecting something, you're just watching a fancy film strip

You are correct that passive learning--sitting and watching--is not good enough. But some of these simulations are interactive, they provide varying levels of feedback. There is one of a frog that is quite good:

http://scienceman.org/dissection.html

Check out the one called Froguts. For some strange reason people seem to think that I believe a simulation is an acceptable substitute for other learning activities, even though I haven't said that. All I have said is that it depends what the intended outcome is. That will determine the best teaching method.