Human Gastro-intestinal Tract
Alec (Huu) Tran
BIO/101
March 5, 2014
Ricardo Altschul

Human Gastro-intestinal Tract

Human gastrointestinal tract or digestive tract is considered one of the major organs in the human body. It helps the body digest foods and liquids then break it down into nutrients for the body to absorb. Once the food is place in the mouth, it is the starting of the digestive system. After the teeth breaks the food into smaller pieces mixed with saliva, they travel down the esophagus. The esophagus is the hollow muscular tube where it guides the food to the stomach. It guides the food by contracting its wall wave like muscles. The stomach is where the food gets further breaking down. The stomach heavy muscle walls, as a grinder, mixes the digestive liquid The digestive system. (2013) (produce by the stomach) helps process the food into fluid or paste. After leaving the stomach, the food enters the small intestine. Inside the small intestine, the food gets next stage of breaking down. The small intestine took the enzymes from the pancreas and the bile the liver provided, mixes in the food breaking it down further. The gallbladder also plays a big role in this process. It acts as a transport duct between the liver and the small intestine. At this stage, the small intestine also absorbs the broke down food nutrients into the bloodstream. The waste products leaving the small intestine then travel to the large intestine. The large intestine takes the waste products and the elder cells from the digestive tract lining, absorbs water and the remaining convert them into liquid waste or stool. Last but not lease, the rectum is where the waste or stool sit and wait until the body going through the bowel movement and sending stool exiting the anus. That is where