The Digestive System

By Jake Gill

Main Function of this System:

It digests your food.

Main Parts of this System:

Stomach, Small Intestines, and Large Intestines.

What Each Part Does:

You start the process when you start chewing. This gets it prepared. Once the food gets into your stomach, it goes into your Small Intestines. This is where the food starts to become a whole. Then, it goes into your Large Intestines, where it wraps up the process, making... Well... Poop.

How this system affects other systems

All organs need nutrients (such as protein, vitamins, sugar, water) and the digestive system makes those available. You could say, therefore, that the digestive system affects other organs by keeping them alive.

How other systems affect this one

Some problems (disease/illness) of this system:

Digestive problems affect 62 million people in the United States each year, according to the University of Maryland Medical Center. These problems run the gamut from upset stomach to colon cancer. Doctors often find it difficult to determine the cause of a particular problem, but heredity and lifestyle factors such as diet, stress, and fatigue often play a role. People with digestive problems should consult a doctor who specializes in gastroenterology.

Effects of environmental factors on this system:

If you eat and then exercise, you will most likely throw up. The reason why this happens is because your digestive system can only focus on one thing at a time. If you are digesting food, and exercising, your digestive system will focus on the exercise. So it "throws away" the food, causing you to throw up.

Three fun facts about this system:

1.7 liters of saliva is produce each day! That's almost as much saliva as there is Pepsi in a big Pepsi bottle! Also, the esophagus is 25 centimeters long, and over 90% of the digestion & absorbing takes place in the small intestine.