Human Digestion System

Jamie 09/10/09 SCI 241 Human Digestion Check Point The process of digestion prototypical begins in the embouchure. 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 wherefore passes through the pyloric sphincter and into the deplete in the mouth catgut. From the small gut, what hasn’t been absorbed passes into another sphincter and into the mammoth gut. The mouth is the fount of the digestive system. Salivary glands produce saliva in the mouth that makes food easy to swallow. Saliva contains an enzyme called salivary amylase that begins breaking set down the starches into sugars. The mouth contains teeth that chew the food to make it assertable to swallow; chewing increases the amount of food that comes in contact with digestive substances. The mouth includes the tongue that hel ps 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. card 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 free substances into the small intestine that continues breaking down the chyme. The large intestine includes the colon and re ctum and is roughly five feet long. roughly! vitamins, minerals and water are absorbed in this intestine. A equitable bacteria call intestinal micro flora breakdown the unabsorbed food such(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: workaday Sources John Wiley & Sons, 2006If you want to get a full essay, ordinance it on our website: OrderEssay.net

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