The Digestive System
Wanna come on a journey through the human digestive system? Join me, Pizza, and I'll tell you everything you need to know about the human digestive system. First, we enter through the mouth. The teeth will tear and grind up the food. The tongue will move the food around then the saliva start to chemically digest the food turning it into a watery mixture that can easily pass into the stomach. Then the food goes down the throat, which is a tube, connecting the mouth to the esophagus, which links also to the stomach. The food is carried along the esophagus by muscular contractio
Feces are stored and expelled by the large intestine. It has a very large surface due to the villi along its walls that help absorption. It continues to break down the food and release the nutrients into the bloodstream so the can be passed around the body. The food is stores and digested in the stomach, the stomach contains hydrochloric acid and other important enzymes, which chemically break down the food, releasing the nutrients. Nutrients are absorbed in the small intestine. The pancreas produces pancreatic juice. When there is no food in the small intestine bile from the liver is sent to the gall bladder where it is stored in a concentrated form to be released when food enters the digestive tract. Muscular contractions move the partially digested food around the stomach. It neutralizes the hydrochloric acid from the stomach, makes the enzyme to stimulate the liver into producing bile and secretes insulin that transports sugar. Then the liver processes and distributes nutrients. The small intestine is divided into three sections. The liver creates bile that is important in chemically breaking down the food in the small intestine.
Common topics in this essay:
Pizza I'll,
,
hydrochloric acid,
human digestive system,
digestive system,
human digestive,
food goes,
muscular contractions,
stomach food,
food intestine,
break food,
|
Acceptance Essays
