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Unformatted text preview: direct secretion, amplification, nothing inhibiting the process (“pump it up, turn it out, shut it down”) h. Caediac valve-reverse peristalsis i. Acid reflux is a temporary spasm. i. Large intestine-i. Symbiotic relationship ii. Vitamin k 1. Sharks carnivorous- don’t need length of intestine like humans. Must first initially completely digest meal. 2. Fiber diet- have longer intestines j. Appendix- k. Incredible amount of water used in digestion i. Ex: HCl is only useful after hydrolyzed 1. Most of the water is recycled in large intestine 2. Colon- last region of LI, ii. All material moves to liver 1. Some materials can readily move across the stomach lining and not go through the liver a. Ex: alcohol only if has gone through the small intestine b. Hypatic cortal vein i. Liver reduces concentration of sugar and puts back in at about 0.1%...
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- Fall '08
- Large intestine, chemical digestion, duodenum