1. by Colon, Donovan Luera, Michael Navarro, Matthew

2.  Mouth and Salivary Glands  Esophagus  Stomach  Small Intestine  Liver  Large Intestine

3.  Where Digestion first occurs  Salivary glands soften and moisten food while you chew making it easier to swallow and digest  A Digestive Enzyme called Amylase makes carbohydrates (sugars and starches) break down  After all this happens food is swallowed then pushed down a tube-like organ (by wavelike muscle contractions called peristalsis) called the esophagus which transports food from the mouth to the stomach

4.  Food enters the stomach from the esophagus from the Cardiac Sphincter  Within ten seconds of food being swallowed the stomach mixes food with digestive juices to begin the production of chyme.  It takes four hours time to produce chyme which is slowly drained down the stomach through the Pyloric Sphincter to the duodenum (connection point of the stomach and small Intestine)

5.  Where most digestion and absorption occurs Structure:  The small intestine starts at the stomach and ends at the large intestine.  It is roughly 6 meters (20 feet) long but it’s not able to absorb all body nutrients required.  The inner wall is made of two kinds of folds: plicae circulars and rugae.  The intestine is made of three distinct zones: duodenum, jejunum and ileum. However the differences between these are microscopic. Function  It is considered the part where the 'most extensive part of digestion' occurs because it is where most of the chemical digestion takes place.  The major nutrients produced are carbohydrates, proteins, and lipids.

6. Structure:  The liver is reddish-brown in color.  The liver is split into two unequal sized lobes; in them are blood capillaries, liver cells and the bile capillaries. Functions in Digestion:  It processes the nutrients absorbed from the small intestine.  The liver creates bile that is used in the digestion of fat.  The liver is the body’s chemical "factory," because it uses the raw materials absorbed by the intestines and makes all the chemicals the body needs to function.

7. Structure:  The average adult large intestine is 5 cm wide and 1.5 meters long.  It’s made of caecum, colon, rectum and anal canal. Functions:  Reabsorbs water and other mineral ions.  Forms and temporarily stores feces.

8.  An inflammation, irritation, or erosion of the lining of the stomach.  Cause: Caused by irritation due to excessive alcohol use, chronic vomiting, stress, or the use of certain medications. -May also be caused by; -Helicobacter pylori: A bacteria that lives in the mucus lining of the stomach. Without treatment, can lead to ulcers, or stomach cancer -Pernicious anemia; form of anemia that occurs when the stomach lacks to absorb vitamin b12

9.  Symptoms: -Nausea -Abdominal pain -Vomiting -Indigestion -Hiccups -Loss of appetite -Vomiting blood or coffee ground like material  Treatment: -Taking antacids and other drugs to reduce stomach acid -Avoiding hot and spicy foods -If gastritis is caused by h pylori infection, then your doctor will prescribe antibiotics and antacid blocking drugs -If gastritis is cause by pernicious anemia then you will receive vitamin B12 shots

10.  Cheatsheet. The Body. Science Channel. April 13 2012  Emedicinehealth. Sandeep Mukherjee April 13 2012 <www.emedicine.com/anatomy_of_the_di gestive_system/article_em.htm