1. Digestion and Sports Nutrition Digestion

8. Organ Role / Structure Mouth Pharynx, Larynx Chewing and Swallowing Breaking down food particles Mechanical and Chemical Voluntary and Involuntary Oesophagus Peristalsis through muscular contraction Deliver food to the stomach Involuntary Stomach Stores and mixes Breaks down food particles Acidic Involuntary Mechanical and Chemical Small Intestine Absorption Involuntary Large Intestine Removal of waste Water absorption and removal

9. http://www.youtube.com/watch?v=fCQ_MrhhGvI Why does chewing gum prevent tooth decay?

11. HCl: Acid on meat activity – observation Acid is neutralized in the duodenum by pancreatic bicarb to prevent small intestine damage Acid activates pepsin to break down protein Mucous (secreted by goblet cells) protects lining of stomach from self destruction Ulcers – due to bacteria

12. Membrance scenario Show semipermeable dialysis tube allowing one way flow of some things Into blood or lymph (fats) Osmotic pull – no energy used (passive process), high to low concentration. Show the rate of flow and differences with concentrations. How strong can you make sports drinks?

13. You tube – Slow emptying of viscous meal – http://www.youtube.com/watch?v=QDrzs1bZSWI Vomiting reverse giant contractions - http://www.youtube.com/watch?v=f6y5SykbqJE&

15. Food intolerance (gluten, lactose) gut gets upset, causing inflammation, fatigue etc, can cause at the brain level (mood and depression) Coke angle can be helpful in stabilizing – potassium phosphate??? Barium swallowing from youtube. Stretch sensitive brings on contraction Swallowing http://www.youtube.com/watch?v=fCQ_MrhhGvI