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Human Digestive System Created By: Denise Zivkovic and Sydney Stirling Overall: Digestion is the process by which molecules are broken down and used by the body. Digestive Tract is about 7 meters long, that’s about 24 feet! Mouth: Chemical and mechanical digestion The Digestive tract begins at the mouth Salivary Duct Teeth, jawbone, and tongue Pharynx: Also known as the throat Connects mouth to the esophagus and trachea Esophagus: Connection from throat to the stomach Closed at the top except during swallowing Muscle contractions Stomach: J-shaped ‘bag’ Secretes about 5 pints of gastric juice each day Connection to the small intestine Mechanical and chemical digestion Small Intestine: About 5 meters long, that’s 17 feet of digestive tract! Connects to the large intestine Consists of the duodenum, jejunum, and ileum Chemical digestion Absorption of nutrients Large Intestine: About 1.5 meters long, that’s 5 feet! Connected to the small intestine Consists of the colon and rectum Undigested food is formed into feces Support in Homeostasis: Digestion breaks down food into smaller molecules that the body can use for nutrients. Digestion, always in Action https://www.youtube.com/watch?v=b20VRR9C37Q Bibliography "8. Types of Tissue." Digestive-System-MPRR. Tangient LLC, n.d. Web. 15 May 2016. <https%3A%2F%2Fdigestive-system-mprr.wikispaces.com%2F8.%2BTypes%2Bof%2BTissue>. "Your Digestive System and How It Works." National Institute of Diabetes and Digestive and Kidney Diseases. N.p., n.d. Web. 15 May 2016. <http://www.niddk.nih.gov/health-information/healthtopics/Anatomy/your-digestive-system/Pages/anatomy.aspx>. “Structure and Function: The Digestive System.” Aviva. Complete Home Medical Guide Dorling Kindersley. 16 May 2016. <http://www.aviva.co.uk/health-insurance/home-of-health/medicalcentre/medical-encyclopedia/entry/structure-and-function-the-digestive-system/>.