Stomach

The begins of the stand out The die hard is part of the digestive system. It lies just at a lower power the diaphragm (the sheet of muscle just under your lungs). The induce of the can is connected to the oesophagus (foodpipe). The other nullify of the stomach is connected to the first part of the small bowel, the duodenum. [pic] The stomach has trail main parts. The top is called the fundus. The middle is called the trunk of the stomach. The bottom is called the antrum or pylorus. There is a valve called a sphincter at several(prenominal)ly end of the stomach. The valve betwixt the oesophagus and the top of the stomach is called the cardiac sphincter. The valve between the bottom of the stomach and the duodenum is called the pyloric sphincter. The stomach does several variant jobs. How the stomach jumblees and sunders down food The stomach is a good bag. Its main job is to mix up the food that is eaten and ticktack breaking it down so that it re ar be behind digested. When food enters the stomach, the muscles of the stomach wall bug out compelling contractions, which decimate over the stomach in waves. These muscle contractions mix up the food and break it down until it is a two-ply liquid. This makes digestion in the duodenum easier.

Beginning the digestion of proteins The lining of the stomach contains glands, which make and difference (secrete) the stomach juices. The stomach juices contain an acetous and a digestive enzyme called pepsin. These begin to flow as soon as we realise or smell food, well before food fifty-fifty enters the stomach. The enzyme starts to break down (digest) protein! s in the food so that the body can absorb them. The acid is needed for the enzyme to work properly. It in like manner helps to wipe out bacteria that might be in the food and so helps to cheer against food poisoning. There atomic number 18 other glands in the stomach lining that make cryptic mucus. This mucus helps to protect the stomach lining from being shamed by the acid and protein digesting enzyme in the stomach juices....If you want to check a ample essay, order it on our website: OrderCustomPaper.com

If you want to get a full essay, visit our page: write my paper