The Digestive System
digestive system is used to process food, which is used for energy it needs to
maintain and repair. When you eat,
your teeth grind, munch and crunch then shred the food while mixing it with
saliva. Next, the food moves down a tube called the esophagus
to the stomach. When it gets to the stomach, three strong bands of strong
muscle churn and squeeze to break the food into smaller pieces. The acid
produced in the stomach dissolves the food. After the small pieces of food leave
the stomach, it travels through the small and large intestines, where the small
particles of food pass through linings of the intestines and into blood.
Powerful chemicals called enzymes digest
the carbohydrates, proteins, and fats that make up your diet.
usually chew your food thoroughly? Your mouth and teeth are specially designed
to crunch, munch, and chop that food that you try to fit in your mouth all at
once. When you finally get all that food in your mouth and swallowed it, ever
wonder what stages it goes through? Well I'm gonna tell you. After you swallow the food, it passes through a tube about 10
inches tall. The tube is called the esophagus.
A series of wave like muscle contractions automatically move the
food along the digestive tract. This
is called peristalsis. Your stomach secretes juices that continue to break
the pieces food. Contractions in the stomach push the food into the upper
intestine, or small intestine. When
you get to be an adult, your stomach will hold about half a gallon of food!!