The digestive system is the series of tubelike organs that convert our meals into body fuel. There are about 30 feet (9 meters) of these convoluted pipeworks, starting with the mouth and ending ...

Lift and remove muscle. Remove tissue on neck to view esophagus. Be careful not to destroy circulatory system. Digestive organs can be pulled out and re-examined next week. 4. Mudpuppy Make two ...