Digestive System

By: Shelbie Rhodes and Sydney Archibald

What is the function of the Digestive System?

The function of the Digestive System is digestion and absorbtion. The digestive system is abnormally constructed to achieve its specialized function of turning food into the energy you need to survive and packaging the residue for waste disposal.

What are the functions of the organs in the Digestive System?

Mouth - This is where digestion starts when takin the first bite of food. Chewing breaks the food up so it can be easily digested. Saliva mixes with food to open the process of breaking it down into a form the body can consume and use.

Esophagus - This is located in your throat near the windpipe. The esophagus receives food from the mouth after you swallow. The esophagus delivers the chewed up food down to the stomach.

Stomach - The stomach is a container that holds the food while it is being mixed with enzymes that continue the process of breaking down food into a usable form. Cells in the lining of the stomach secrete a strong acid and strong enzymes that are responsible for the breakdown process.

Small Intestine - The small intestine is made up into 3 segments, the duodenum, the jejunum, and the ileum. This intestine is 22 feet long and is a muscular tube that breaks down food using enzymes released by the pancreas and bile from the liver. The duodenum is highly responsible for the constant breaking-down process, The jejunum and ileum are mainly responisble for absorbtion of nutrients into the bloodstream.

Pancreas - This secretes digestive enzymes into the duodenum. These enzymes break down protein, fats, and carbohydrates. This also makes insulin, secreting it directly into the bloodstream.

Liver - The main function of the liver is to process the nutrients that were absorbed. It aslso detoxifies potentially harmful chemicals.

Gallbladder - This just stores and concentrates bile, and then releases the bile into the duodenum to help absorb and digest fats.

Large Intestine - The large intestine is 6 feet long and it is a muscluar tube that connects the small intestine to the rectum. This is a super specialized organ that is responsible for processing waste so that emptying the bowels is easy and convenient.

Rectum - This is an 8-inch chamber that connects the large intestine to the anus. The rectum receives stool from the lerge intestine to let the person know that there is stool to be evacuated, and to carry the stool until evacuation happens.

Anus - The anus is the last part of the digestive system. It is a 2-inch long canal consisting of the pelvic floor muscles and the two anal sphincters. This is responsible for letting us know if our stool is liqiod, gas, or solid. It also releases the stool from the body.

What are some disorders that occur within the Digestive System?

There are many disorders that occur in the Digestive System. One disorder is the Inflammatory bowel disease. The inflammatory bowel disease occurs when the small or large intestine becomes inflamed. When the intestine is inflamed, it becomes swollen. Most signs are feelings of deep pain in your stomach. The symptoms are diarrhea, bloatinng, stomach cramps and, sometimes weight loss. Treatments for IBD can include medicines to fight infections. Another disorder is the Celiac disease. The celiac disease occurs when the nody's immune system reacts to gluten. When the small intestine is damaged, it is difficult for the body to absorb vitamins, minerals and other nutrients from food. Signs and Symptons are stomach pains and it affects the health and growth. THere is no cure for this disease but can be helped with a gluten free diet.