"No, baby. These are ovaries, this is the uterus, and that's the bladder."
"Ick!"
"Why did we buy a model of a body if you're going to be icked out by the parts?"
"It's just the bladder. I knew there would be a bladder. Ick."
She's also quite pleased that the model can be put together pregnant, should she choose.
Hee! I think her papa should help her put it together.