I think you can tell by your daughters personality. I would NEVER take my daugter to this because illness and injury freak her out. In preschool, her teacher broke her leg and came in to show the class that she was doing ok and show off her stiches. The other kids thought it was cool, my daughter threw up and had to come home.
My brother had knee surgery and she would NOT go near him until he was fully healed and no longer on the crutches.
If something is bothering her, even something very minor, she has a hard time telling us because she's nervous it's going to be bad.
This is common for her age, or so the mamapedia moms tell me :) So I would never take her, eventhough I enjoyed it immensely when my husband and I went. Show your daughter some anatomy books from the library and see her reaction. If she thinks they are cool, then take her. If she thinks it's disgusting and doesn't want to look at it, then don't take her. If you do take her, just prepare her in advance of what she will see. Or maybe just tell her about it and ask her if she wants to go?