Anatomy of Digestive, Circulatory, and Urinary Systems

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A Fantastic Voyage Anatomy of Digestive, Circulatory & Urinary Systems This is me, Beth Cooper. I have been shrunk again to the size of 8 microns only. In my mini-sub, I am now entering into the mouth of a 55 years old man. He just had a lot of junk food including Hamburger, French Fries and Root beer (which is my carrier as well). It is amazing to see that the digestion process has already started in the mouth of this man. The food has been broken down in to swallow able portions during chewing process. Bits of French fries coupled with beer are still present in his mouth and enzymes are acting on this food. It is the saliva which acts as the first digestive reactor, secreted through salivary glands. Now that the food has been chewed well, it is now swallowed into esophagus. Esophagus is a long tube which acts as a path to the main digestive organ: the stomach. However, it is important to note that it's not just a carrier of the food but also a digestive organ itself. The enzymes secreted in the esophagus further facilitate the digestion process. The esophagus is a long muscular tube. I can feel its rhythmic motion while I am moving down the tube along with the food. This rhythmic motion helps the food to reach the stomach. I can't help noticing the gall bladder while passing by the liver while entering into stomach (Netter, 2006). I am now entering into stomach which is a big bag itself. It is a sac like structure which is moving in a churning motion and is full of

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