Does anyone remember the name of the pc game Brittany Murphy did in the early/middle 90s?

I played an educational pc game when I was little that Brittany Murphy was in....like it had real video in it as well as games and such. I don't remember too much, but part of one of the menu screens had a treehouse and you clicked on different "rooms" in the treehouse to go to. Brittany Murphy's was the anatomy of the body if I remember correctly. But I loved this game and it's driving me crazy that I can't find it anywhere; she's not credited in it on imdb or wikipedia. Can anyone help?