Digestive+System-+Period+2

** __**Describe how the organs work together to allow your body to get nutrients from food into the cells of your body:**__
 * Kacie Winters-Chelsey Wilson-Chris-Ross
 * Major Functi****ons of the Digestive System:**
 * The major function of the digestive system is to chemically and physically break down food into component molecules that will help provide energy for the body.
 * Major Parts:**
 * __Mouth__- Breaks food into smaller pieces. Develops saliva to break down starch into smaller molecules. Performs mechanical digestion.
 * Esophagus- A muscular tube that connects your mouth to your stomach. It pushes food down by muscle contractions. That means we can swallow in any position. If the food is bad, poison, it may be thrown out of our bodies by vomiting.
 * Stomach- A muscular pouch-like enlargement of the digestive tract. It stores and breaks down food by chemically breaking down its proteins. Beginning at the mouth, the stomach has layers of muscles that continue the breakdown of food. It breaks down food by gastric acids. The average adult stomach stretches to hold from 2 to 3 pints and produces the same amount of gastric juices every 24 hours.
 * Small Intestine- A muscular tube about 6 meters long. It's diameter is 2.5 c.m. digestion of your meal occurs in the small intestine. It is divided into 3 sections: (1) the duodenum, a receiving area and partially digested food from the stomach; (2) the jejunum, where most of the nutrients are absorbed into the blood and (3) the ileum, where the remaining nutrients are absorbed before moving into the large intestines.
 * Liver- Large complex organ with many functions such as producing bile.
 * Pancreas- A soft, flattened gland that secretes both digestive enzymes and hormones.
 * Large Intestine- Wider than the small intestine. A muscular tube that is also called the colon. Serves no function in the digestive system .media type="youtube" key="sCn5uvvc3WE" height="344" width="425"


 * __Where is the food broken down?__**
 * 1) The food starts being broken down in the mouth by chewing and then your salivary glands release saliva which helps the food go down the esophagus easily.
 * 2) After the food leaves the esophagus,then the food enters the stomach where the food starts the process of being chemically broken down by gastric acids and enzymes and is ready to go in the small intestines
 * 3) The pancreas releases pancreatic juices which contain the enzymes that help the food chemically digest.
 * 4) The liver will absorb all the fats by bile entering the small intestine from the food that is being digested
 * 5) The food then enters the small intestine where villi take different nutrients from the food that it is assigned to and absorbs them into blood vessels and the body.
 * 6) The food that isnt used,needed or is waste is sent to the large intestine where it sends the food through the colon and out the rectum.

All food is absorbed in the small intestine and then is sent out to different parts of the body. Carbohydrates are absorbed into the liver and Proteins are abosrbed into different parts of the body to help build cells.
 * __Where is the food absorbed?__**

__**What is Gas?Where Does it come From?**__
 * Gas is made when your intestines are digesting food and creating energy for your body.Gas or intestinal gas is made up of many gases such as oxygen,nitrogen and hydrogen.
 * It happens when you swallow too much air at once,different types of food,a new type of medicine and sometimes constipation.
 * __Why do diarrhea and constipation happen?__**
 * Diarrhea usually happens when you have the stomach flu or a food upsets the digestive system**__.__**
 * Constipation happens when you don't have enough fiber in you body or a lack of exercise.

Our case is that the arrow must have scraped the stomach,which would result in vomiting up blood and had to puncture the large intestine which would explain blood coming out of the rectum.
 * __Our case on what could've happened to Robin:__**