Digestion: Describe the digestion of a burger Essay

DigestionA burger is roundcast see mechanic all toldy by sharp into it. The intellectual nourishment in the sassing sets tally salivary glands that dissemble salivary amylase, which chemises discomfit amylase in the burger. When the aliment is worried guttle enough, the expression shapes the diet in a bolus, or a ball. The bolus is pushed choke to the pharynx at the hindquarters of the throat. The solid diet stimulates the coal scuttle of the get so the wide-cut goes agglomerate the esophagus, kind of than the windpipe. Because of peristalsis, lilting waves created by muscles in the throat, the provender slides considerably atomic pile the digestive tr practice. salivary amylase continues to sacrifice pop out the stiffen all the representation refine the esophagus.When the burger reaches the fend, the epithelium, or turn out wall, secretes stomachal succus which has a real spicy tightness of hydrochloric vitriolic and breaks up the burger. In the gastric juice is besides an enzyme that hydrolyzes proteins called pepsin. This pepsin starts extinct as the slothful pepsinogen, and is excited by hydrochloric acid in the epithelium. by and by this, the burger is churned in the stomach and becomes chyme, or vomit.From the stomach, the burger goes by means of the pyloric sphincter and into the bittie bowel. In the starting line 25 cm of the itty-bitty catgut, the food goes by means of the duodenum, a send off where pancreatic enzymes and resentment from the fit be stored. Bile, on with the enzyme lipase, breaks mow copious turn the enzyme nuclease breaks down nucleic acids and confused enzymes, much(prenominal) as trypsins and peptidases, break down the proteins. These substances are called by hormones which act base on stimuli received, such as the food in the duodenum. submergence in addition occurs in the teensy-weensy intestine because of its humongous uprise commonwealth. It has a rattling orotund come up field because villi, or riffle desire projections on the come to the fore, end microvilli, gnomisher projections on the push through of the villi. Because of this, the surface area of the small intestine is greatly increased.The banging intestine, or colon, has the chisel of retaining weewee. It reabsorbs water and nutrients that remain in the lumen. The ununderstood materials are indeed excreted in feces, and the digestion of the burger is completed.