Smart Lab You Explore It: Human Body Model From Brains to Bones, Get to Know the Human Body What keeps your stomach from digesting itself? What do brains and pudding have in common? Explore the complex inner workings of the human body and see how the bones, muscles and squishy vital organs fit together with this 12"H hands-on model Includes 9 organs, 12 plastic bones and muscles, tweezers, forceps, full-color guidebook and an exclusive free quiz card set with 160 questions for on-the-go learning