The Digestive System by, menn boon-long

The digestive system consists a group of organs working together to turn food into energy or essential nutrients that feeds your entire body. Normally the food is passed through a tube called the alimentary tube. This system is very important because it helps your growth, create nergy and repair broken cells. Without it no one would be able to survive.

Digestion begins with the mouth. As you chew the food to break it down into smaller pieces it makes it easier for the food to digest. Along with that the saliva would come in and mix the food breaking it down into a structure, where your body can consume and use. The mouth is the first step of starting your digestive system.

Once the food goes through the throat the second stage of digestion is located in the Esophagus. The Esophagus is a muscular tube connecting to the throat also known as the pharynx which leads to the stomach. What the esophagus does is it delivers food straight to the stomach. Furthemore, there is a small valve which is called the "lower esophageal sphincter." It's function is to keep the food from going back to the esophagus. According to webmd the esophagus is approximately 8 inch's long of pink tissue. It is behind the trachea and the heart but infront of the human spine.

The third stage of the digestive system is located within the stomach. The stomach is a big pink sac-like organ with strong walls. It is one of the most important organ in your entire body. The stomach realeases powerful enzymes and acids which breaks the food down even more, making the food become a more liquid-like or paste substance. Food that is digested in the stomach are proteins. The stomach contains hydrochloric acid to destroy dangerous bacteria's.

The fourth stage of the digestive system is located within the small intestine. The small intestine is approximately 2.5m long. The small intestine plays a big role within the digestion as almost 90% of the absorption of food and digestion occur while 10% is located in the stomach and large intestine. It continues the process by using enzymes from the pancreas and the bile of the liver. The bile is used to digest fat.

The ffith stage of digestion is in the large intestine. The large instetine is made up of colon and is approximately 1.5meters long. A colon is a tubular structure. The large intestine's major funciton is to collect water, transfer the waste materials from the body and absorb vitamins. For the large instestine it takes relatively 24-30 hours which is a lot. Along with that their are bacterias that helps the large intestines abosrb vitamin. These bacteria's are good abcteria and normally lives within the large intestine.

The rectum is the sixth stage of digestion. The rectum is a chamber that connects to the colon that leads to the anus. It collects stool that is released from the colon. The rectum is the last part of the large intestine before reaching to the anus. The rectum is a temporary storage palce that keeps the feces (waste matters) before releasing the feces to the anus to be digested out. The length of the rectum in a normal human body is approximately 10-12 centimeters long.

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