Digestion

The **__Digestive System__** breaks down your food molecules onto simpler molecules to be able to get to the rest of the body.


 * __Types of Digestion__**
 * **Mechanical**-Breaks down food phisically into smaller pieces of the same substance
 * **Chemical**-Uses enzymes to break down food molecules into simpler molecules

Chemical:Saliva starts to digest Starch
 * __Vocab__**
 * **Peristalsis**-Wavelike contractions of smooth muscle that pushes food and waste through the digestive tract
 * **Ingestion**-The Process of foods entering the digestive system (eating)
 * **Egestion**-Removing solid waste
 * **Absorbtion**-Moving nutriants from the digestive system to the blood stream
 * __Pathway__**:Mouth, Esophagus, Stomach, Small Intestines, Large Intestines
 * **Mouth**-Mechanical:Teeth and Tongue grind food
 * **Esophagus**-Tube which connects mouth and stomach
 * **Stomach**-Most Mechanical digestion occurs here,with onlysome chemical digestion from gastric juices
 * **Small Intestines**-Most Chemical digestion occurs here, substances from the Pancreas and Liver empty into the Small Intestines. Absorbtion of digested food into the blood occurs through the villi
 * **Large Intestines**-Removal of water from wast. Form and stores feces.


 * __Accessories__**:Liver, Gall Bladder, Pancreas
 * **Liver**- Produces bile
 * **Gall Bladder**-Stores bile
 * **Pancreas**-Produces Insulin


 * __Villi__** are finger-like projections that line the inside of the Small Intestines
 * nutriants diffuse through the villi walls into blood vessels (capallaries) that are going by the villi