Transcript Document
The Digestive System – Part 2 Gaiser Life Science Know The Digestive System – Part 2 What happens to the thick liquid after the stomach is finished with it? “I don’t know any.” is not an acceptable answer. Use complete sentences. Evidence After listening to the PowerPoint lecture, come back here and list evidence to explain why your answer to the above question is or is not a good answer. You may also use other outside sources to help you respond. Page 65 Clarifying ?s Stomach’s job (8) Liver’s job (9) bile Pancreas’ job (10) The Digestive System – Part 2 Information 8. Small amounts of the thick liquid are released into the small intestine by the pyloric sphincter. This is where most of chemical digestion and nutrient absorption takes place. Example: Enzymes are produced in the small intestines, liver, and pancreas. FYI: The liver is the largest and heaviest organ in the body. a. Breaks down medicine and other substances. b. Helps eliminate nitrogen c. Produces bile - Bile emulsifies fats or breaks them up into small particles that enzymes from the pancreas can break down further. FYI: Bile from the liver is stored in the gall bladder and released from there into the stomach. Doctors can surgically remove the gall bladder with minor side effects. The pancreas produces enzymes to break down starches, proteins, and fats. Page 66 Clarifying ?s Small intestine’s job (11) The Digestive System – Part 2 Information When chemical digestion is finished, absorption of nutrients happens in the small intestine. This takes place in structures called villi. - tiny finger-like projections that cover the inside surface of villi the small intestine. Nutrients are transferred to the blood vessels in the villi. Blood then carries nutrients to the rest of the body. Large a. This is the last stage of digestion. Water and intestine’s job undigested food (fiber) move through the large (12) intestine. Water is removed from the waste, also called feces, and returned to the body. b. The waste is then compressed to solid form and held in the colon until the organism can dispose of it. Elimination (13) At this time the waste is eliminated by the body as it passes through the rectum; this is properly referred to as defecation. Summary: Page 68 Clarifying ?s Stomach’s job (8) Liver’s job (9) bile Pancreas’ job (10) The Digestive System – Part 2 Information 8. Small amounts of the thick liquid are released into the small intestine by the pyloric sphincter. This is where most of chemical digestion and nutrient absorption takes place. Example: Enzymes are produced in the small intestines, liver, and pancreas. FYI: The liver is the largest and heaviest organ in the body. a. Breaks down medicine and other substances. b. Helps eliminate nitrogen c. Produces bile - Bile emulsifies fats or breaks them up into small particles that enzymes from the pancreas can break down further. The pancreas produces enzymes to break down starches, proteins, and fats. Clarifying ?s Small intestine’s job (11) The Digestive System – Part 2 Information When chemical digestion is finished, absorption of nutrients happens in the small intestine. This takes place in structures called villi. - tiny finger-like projections that cover the inside surface of villi the small intestine. Nutrients are transferred to the blood vessels in the villi. Blood then carries nutrients to the rest of the body. Large a. This is the last stage of digestion. Water and intestine’s job undigested food (fiber) move through the large (12) intestine. Water is removed from the waste, also called feces, and returned to the body. b. The waste is then compressed to solid form and held in the colon until the organism can dispose of it. Elimination (13) At this time the waste is eliminated by the body as it passes through the rectum; this is commonly called a bowel movement. Summary: Pictures for this PowerPoint came from the following internet link: http://healinglightseries.com/tutorialdigestion.html This PowerPoint was created from Charlene Shea’s lecture notes by Tim Paterek. It is copyrighted and may not be reproduced outside the Vancouver School District. All pictures came from Google Image Search. To fall within the Fair Use Guidelines, this PowerPoint must be used within the confines of the classroom and may not be published back onto the Internet unless the pictures are removed.