1. Digestive System (Part I)

2. Digestive System Sometimes called Alimentary Canal – 30 ft long! Sometimes called Alimentary Canal – 30 ft long! Two divisions: Two divisions: –Canal – where digestion occurs –Accessory organs – no digestion occurs  Teeth  Tongue  Salivary glands  Liver  Gall bladder  pancreas

4. Types of Digestion Mechanical Mechanical –Teeth –tongue Chemical – salivary enzymes break down proteins, fats and carbohydrates Chemical – salivary enzymes break down proteins, fats and carbohydrates

5. Teeth http://whyfiles.org/shorties/147tooth/images/teeth.jpg http://whyfiles.org/shorties/147tooth/images/teeth.jpg http://whyfiles.org/shorties/147tooth/images/teeth.jpg

6. Tongue http://www.oralcancerfoundation.org/dental/ images/tongue_exam.jpghttp://www.oralcancerfoundation.org/dental/ images/tongue_exam.jpg picture of underside of tongue http://www.oralcancerfoundation.org/dental/ images/tongue_exam.jpg http://www.neurobio.arizona.edu/282/Lectur es2005/Taste/08_003.jpghttp://www.neurobio.arizona.edu/282/Lectur es2005/Taste/08_003.jpg shows Tongue and taste buds http://www.neurobio.arizona.edu/282/Lectur es2005/Taste/08_003.jpg http://www.morphonix.com/software/education/sci ence/brain/game/specimens/taste_buds.html http://www.morphonix.com/software/education/sci ence/brain/game/specimens/taste_buds.html Animation of taste to receptor nerve http://www.morphonix.com/software/education/sci ence/brain/game/specimens/taste_buds.html http://www.morphonix.com/software/education/sci ence/brain/game/specimens/taste_bud.html http://www.morphonix.com/software/education/sci ence/brain/game/specimens/taste_bud.html Taste bud animated http://www.morphonix.com/software/education/sci ence/brain/game/specimens/taste_bud.html

7. Swallowing http://www.innerbody.com/anim/mouth.html process of swallowing http://www.innerbody.com/anim/mouth.html process of swallowing http://www.innerbody.com/anim/mouth.html http://www.innerbody.com/image/dige01.html shows upper palate - hard and soft http://www.innerbody.com/image/dige01.html shows upper palate - hard and soft http://www.innerbody.com/image/dige01.html http://www.medicalook.com/systems_images/Es ophagus.jpg shows esophagus, pierces the diagragm, is located posterior to the trachea’s C- shaped cartilage rings. http://www.medicalook.com/systems_images/Es ophagus.jpg shows esophagus, pierces the diagragm, is located posterior to the trachea’s C- shaped cartilage rings. http://www.medicalook.com/systems_images/Es ophagus.jpg http://www.medicalook.com/systems_images/Es ophagus.jpg http://www.admit- online.info/images/admit/cd_rom/1131_trachea0 9.gif shows tracheal ring http://www.admit- online.info/images/admit/cd_rom/1131_trachea0 9.gif shows tracheal ring http://www.admit- online.info/images/admit/cd_rom/1131_trachea0 9.gif http://www.admit- online.info/images/admit/cd_rom/1131_trachea0 9.gif

9. Endoscopic View http://www.youtube.com/watch?v=fff7xunqgtI& feature=related digestion and uptake of nutrients, liver and portal circulation (3.50 min) http://www.youtube.com/watch?v=fff7xunqgtI& feature=related digestion and uptake of nutrients, liver and portal circulation (3.50 min) http://www.youtube.com/watch?v=fff7xunqgtI& feature=related http://www.youtube.com/watch?v=fff7xunqgtI& feature=related http://www.youtube.com/watch?v=tWJoYk_NJt0 endoscopic views (3.50 min) http://www.youtube.com/watch?v=tWJoYk_NJt0 endoscopic views (3.50 min) http://www.youtube.com/watch?v=tWJoYk_NJt0 http://www.youtube.com/watch?v=sCn5uvvc3W E&feature=related mentions salivary enzymes, and lymphatic system (2.25 min) http://www.youtube.com/watch?v=sCn5uvvc3W E&feature=related mentions salivary enzymes, and lymphatic system (2.25 min) http://www.youtube.com/watch?v=sCn5uvvc3W E&feature=related http://www.youtube.com/watch?v=sCn5uvvc3W E&feature=related

10. Types of Foods Proteins Proteins Fats Fats Carbohydrates Carbohydrates http://www.youtube.com/watch?v=IxNpXO8 gGFM&feature=relatedhttp://www.youtube.com/watch?v=IxNpXO8 gGFM&feature=related Digestion of proteins, fats and carbs (2.5 min) http://www.youtube.com/watch?v=IxNpXO8 gGFM&feature=related

11. Nutrition Let’s look at sugar in certain foods Let’s look at sugar in certain foods Let’s look at fat content Let’s look at fat content Reading labels Reading labels http://kidshealth.org/kid/closet/games/mis sion_nutrition.html http://kidshealth.org/kid/closet/games/mis sion_nutrition.html http://kidshealth.org/kid/closet/games/mis sion_nutrition.html http://kidshealth.org/kid/closet/games/mis sion_nutrition.html

12. Layers of the Alimentary Tube Mucosal layer Mucosal layer Submucosal layer Submucosal layer External muscle layer External muscle layer Serosa Serosa

13. Small Intestine http://www.nlm.nih.gov/medlineplus/ency /images/ency/fullsize/19221.jpg shows omentum, cecal pouch, appendix http://www.nlm.nih.gov/medlineplus/ency /images/ency/fullsize/19221.jpg shows omentum, cecal pouch, appendix http://www.nlm.nih.gov/medlineplus/ency /images/ency/fullsize/19221.jpg http://www.nlm.nih.gov/medlineplus/ency /images/ency/fullsize/19221.jpg http://bio.bd.psu.edu/cat/Circulatory_Syst em/vesels%20of%20small%20intestine.jp g shows omentum and vascularity http://bio.bd.psu.edu/cat/Circulatory_Syst em/vesels%20of%20small%20intestine.jp g shows omentum and vascularity http://bio.bd.psu.edu/cat/Circulatory_Syst em/vesels%20of%20small%20intestine.jp g http://bio.bd.psu.edu/cat/Circulatory_Syst em/vesels%20of%20small%20intestine.jp g http://www.becomehealthynow.com/imag es/organs/digestive/intest_section.gif Villi http://www.becomehealthynow.com/imag es/organs/digestive/intest_section.gif Villi http://www.becomehealthynow.com/imag es/organs/digestive/intest_section.gif http://www.becomehealthynow.com/imag es/organs/digestive/intest_section.gif

14. Liver http://images.medicinenet.com/images/Liver.jpg shows location of liver in relation to ribs http://images.medicinenet.com/images/Liver.jpg shows location of liver in relation to ribs http://images.medicinenet.com/images/Liver.jpg http://wwwisg.cs.uni- magdeburg.de/cv/gallery/VesselVis/portalVein_li ver.jpg shows portal veins http://wwwisg.cs.uni- magdeburg.de/cv/gallery/VesselVis/portalVein_li ver.jpg shows portal veins http://wwwisg.cs.uni- magdeburg.de/cv/gallery/VesselVis/portalVein_li ver.jpg http://wwwisg.cs.uni- magdeburg.de/cv/gallery/VesselVis/portalVein_li ver.jpg http://www.freewebs.com/soaring_sphincter_tra vel_agency/Liver.jpg shows liver and gall bladder and ducts http://www.freewebs.com/soaring_sphincter_tra vel_agency/Liver.jpg shows liver and gall bladder and ducts http://www.freewebs.com/soaring_sphincter_tra vel_agency/Liver.jpg http://www.freewebs.com/soaring_sphincter_tra vel_agency/Liver.jpg http://www.stanford.edu/group/virus/hepadna/2 004tansilvis/liver%20cirrhosis.gif liver cirrhosis http://www.stanford.edu/group/virus/hepadna/2 004tansilvis/liver%20cirrhosis.gif liver cirrhosis http://www.stanford.edu/group/virus/hepadna/2 004tansilvis/liver%20cirrhosis.gif http://www.stanford.edu/group/virus/hepadna/2 004tansilvis/liver%20cirrhosis.gif

15. Gall bladder http://www.youtube.com/watch?v=Pr3Md 9XlLvw&feature=related cholecystectomy http://www.youtube.com/watch?v=Pr3Md 9XlLvw&feature=related cholecystectomy http://www.youtube.com/watch?v=Pr3Md 9XlLvw&feature=related http://www.youtube.com/watch?v=Pr3Md 9XlLvw&feature=related http://www.pims.math.ca/science/2003/in verse/gall_bladder.jpeg US of GB http://www.pims.math.ca/science/2003/in verse/gall_bladder.jpeg US of GB http://www.pims.math.ca/science/2003/in verse/gall_bladder.jpeg http://www.pims.math.ca/science/2003/in verse/gall_bladder.jpeg

16. Pancreas Exocrine and endocrine gland. Exocrine and endocrine gland. Exocrine function is to secrete enzymes: Exocrine function is to secrete enzymes: –Amylase –Lipase –Trypsin Neutralizes gastric juices Neutralizes gastric juices

17. Other link http://www.innerbody.com/image/digeov. html - shows some body systems, animations (such as swallowing) etc. http://www.innerbody.com/image/digeov. html - shows some body systems, animations (such as swallowing) etc. http://www.innerbody.com/image/digeov. html http://www.innerbody.com/image/digeov. html