Human Digestion

Angela Ross Checkpoint: Human Digestion Describe in 200 to 300 words, the bunk food follows through and through the lastive system and how digestion occurs in for each(prenominal) one of the following parts of the digestive system. Be authorized to intromit descriptions of other organs or components of the digestive system, including: * wide-ranging bowel * Mouth * undersized intestine * Stomach The digestion act upon starts with the ingestion of food through the mouth. Within proceedings afterwards food is placed in the mouth the odontiasis confab the food into flyspecker pieces and the saliva mixes with the food transforming it into a bolus. The bolus mixture goes through the pharynx and travels down the esophagus into the rear. erstwhile the bolus reaches the plunk for which has an acidic environment converts the bolus into a semi-liquid mass called chyme. Carbohydrates extend to leave the stomach rapidly and ent er the mid set out intestine; proteins leave the stomach less rapidly; and fats linger thither the longest [ (Stephen Barrett, MD and Manfred Kroger, PhD, 2008) ]. The process target take twain to six hours depending on the amount of food ingested. The stomach wherefore empties the chyme into the small intestines. The small intestine is the principal site of digestion and assiduity.

Enzymes from the pancreas, liver, gallbladder, and the small intestine itself desegregate to break down nutrients so that they can be captive. The pancreas supplies enzymes to digest proteins, fats and carbohydrates. The live produces bile required for emulsification of fat, and the gallbladder stores the bile until it is ! needed. The absorption of nutrients in the small intestine is facilitated by tiny projections called villi, which furnish more surface area for absorption. Nutrients regress through the enteric membrane into the circulatory system, and they are absorbed into the cells. They are use for growth, repair and the release of energy [ (Stephen Barrett, MD and Manfred Kroger, PhD, 2008) ]....If you want to get a full essay, order it on our website: OrderEssay.net

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