Learning about the effects of smoking is one thing. Seeing inside an actual human lung charred by cancerous cells is quite another. The traveling exhibition “Bodies Revealed,” now on display at the Grand Rapids Public Museum, takes apart the human anatomy system by system, offering visitors a rare look under the skin at how people move, feel and function. It also displays how choices can impact the viability or erosion of healthy mechanics of complex human beings. Follow students from Comstock Park High School on this unique tour of anatomy, physiology and the impact of lifestyle on living beings.