Human Digestion System

Jamie 09/10/09 SCI 241 Human Digestion Check Point The process of digestion first gear begins in the spill. The bolus, or ball of regimen mixed with spitting, makes it’s counsel through the pharynx and into the esophagus. From the esophagus the bolus travels through a anatomical sphincter into the rear. The f atomic number 18 thus passes through the pyloric sphincter and into the deplete in the mouth bowel. From the small intestine, what hasn’t been absorbed passes into another sphincter and into the mammoth intestine. The mouth is the lineage of the digestive system. Salivary glands produce saliva in the mouth that makes food easy to swallow. Saliva contains an enzyme yelled salivary amylase that begins breaking down pat(p) the starches into sugars. The mouth contains teeth that chew the food to make it executable to swallow; chewing increases the amount of food that comes in play with digestive substances. The mouth includes the tongue that h elps finish the food with saliva. The stomach, which is make up of tether layers of muscle, temporarily stores the bolus. The stomach produces acid that mixes with the bolus and creates a substance called chyme. The stomach muscles contract thereby mixing its contents. tint that only some of the digestion place in the stomach.

The small intestine is a narrow tube reason at 20 feet in length and is divided into three sections. The small intestine is the main organ for digestion and absorption of nutrients. The pancreas, gallbladder, colored and intestine loose substances into the small intestine that continues breaking down the chyme. The large intestine includes the colon and rectum and is roughly five feet long. roug! hly vitamins, minerals and water are absorbed in this intestine. A equitable bacteria call intestinal micro flora breakdown the unabsorbed food much(prenominal) as fiber. Anything not absorbed in this intestine is then stored in the rectum until it is removed voluntarily from the anus. annexe: Nutrition: universal Sources John Wiley & Sons, 2006If you want to get a full essay, company it on our website: OrderEssay.net

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