My niece, Emma is in the 1st grade and one of her assignments is to send a small, laminated version of herself to someone far away to see what kinds of adventures "Flat Emma" can have. We were the proud recipients of Flat Emma. Samantha was in one of her frenzied carnivore moods, and Flat Emma was devoured almost as soon as she came out of her envelope.
Flat Emma starts her adventure through the digestive process in Samantha's mouth, where food is chewed up and mixed with saliva. This makes food easy to swallow and starts to break down the simple starches into sugars.
Flat Emma is then pushed to the back of Sam's mouth by the tongue and then she goes through the ESOPHAGUS. This is the tube that takes food down into the stomach. It has SPHINCTERS at both ends to keep food from coming back up.
Here she is in the STOMACH. It's a bag that can stretch as more food goes into it. Those ridges are called RUGAE (roo'-gay) that help mix up the food. The stomach also makes acid that kills bacteria and breaks down the food.
After the stomach, Flat Emma goes into the SMALL INTESTINE, which could also be called the "long intestine." In a grown up, the small intestine is about 20 feet long! This is where most of the good stuff is taken out of the food so it can be used by the body.
After the small intestine, Flat Emma and all the digested food go into the LARGE INTESTINE or COLON. In the colon, most of the water is pulled out so the soupy, used up food turns into poop.
The large intestine empties into the rectum, where the poop piles up before it's pushed out. It's a good thing Samantha hasn't learned how to use the toilet. Otherwise, Flat Emma would be on her way to the Kansas City Water Treatment Plant.
Flat Emma sure had an interesting trip through the DIGESTIVE SYSTEM. Maybe next time, she'll go to Cincinnati.