Digestive System Essay

Submitted By lofe23
Words: 397
Pages: 2

Food consists of proteins, fats, and carbohydrates which when eaten provide the body with proper nutrients. Once the food is swallowed and reaches the stomach the process of digestion takes place (Digestion and absorption 2013, pp.1). When food is in the stomach it mixes with gastric juices and creates churning movements by the muscular wall and turns the food in to chyme (Digestion and absorption 2013, pp.1). The enzyme pepsin is the proteolytic enzyme of the stomach which turns the proteins in to peptides (Digestion and absorption 2013, pp.1). Proteins and peptides from the chyme will reach the duodenum of the small intestines by enzymes from the pancreatic juices and also by enzymes from the succus entericus, which now ends the digestion process of proteins (Digestion and absorption 2013, pp.1). The remaining proteins and other various products will enter the jejunum and ileum that is located in the small intestines (Digestion and absorption 2013, pp.1). Proteins will then be broken down in to amino acids. When amino acids are not needed they can be stored as fat used for energy or completely eliminated from the body through the urine (Digestion and absorption 2013, pp.1).

Hormone regulation is the role of the hormones involving the digestive tract. The three main hormones are CCK, gastrin and secretin (NIH, 2008, pp.1). These hormones are released in to the blood stream surrounding the digestive tract to then circulate through the heart and back to the digestive area in which they are then able to stimulate the digestive juices resulting in movement of…