Stomach

The partings of the stand out The die hard is part of the digestive system. It lies just at a lower attitude the diaphragm (the sheet of muscle just under your lungs). The pull ahead of the hurt is connected to the oesophagus (foodpipe). The other send away of the stomach is connected to the first part of the small bowel, the duodenum. [pic] The stomach has booster cable main parts. The top is called the fundus. The middle is called the bole 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 amidst 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 contrary jobs. How the stomach liquifyes and sunders down food The stomach is a large bag. Its main job is to mix up the food that is eaten and experience breaking it down so that it rear be tardily digested. When food enters the stomach, the muscles of the stomach wall bug out knock-down(a) contractions, which decimate over the stomach in waves. These muscle contractions mix up the food and break it down until it is a cryptic liquid. This makes digestion in the duodenum easier.

Beginning the digestion of proteins The lining of the stomach contains glands, which make and submit (secrete) the stomach juices. The stomach juices contain an acetous and a digestive enzyme called pepsin. These begin to flow as soon as we receive or smell food, well before food neve rtheless enters the stomach. The enzyme star! ts to break down (digest) proteins in the food so that the body can absorb them. The acid is needed for the enzyme to work properly. It too 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 succinct 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 agitate a ample essay, order it on our website: BestEssayCheap.com

If you want to get a full essay, visit our page: cheap essay