PHOTOS: Go Inside the Human Body!

Revolutionary technology offers never-before-seen views of our bodies at work.

The Ultimate Machine: From Birth to Death

Inside the Living Body
Inside the Living Body
Inside the Living Body
Inside the Living Body
Inside the Living Body
Inside the Living Body
Inside the Living Body
Inside the Living Body
Inside the Living Body
Inside the Living Body
Inside the Living Body
Inside the Living Body
Much more Friday night on "20/20" at 10 EDT, and watch "Inside the Living Body" on the National Geographic Channel on Sept. 16. You can view more amazing photos at the National Geographic Channel's Web site: http://channel.nationalgeographic.com/channel/inside-living-body/photos.html (National Geographic Channel)
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